Mostrando entradas con la etiqueta Seabirds. Mostrar todas las entradas
Mostrando entradas con la etiqueta Seabirds. Mostrar todas las entradas

sábado, 5 de marzo de 2016

ANIMALS – BIRDS – SEABIRDS – BLACK-BROWED ALBATROSS (THALASSARCHE MELANOPHRIS)


Animals - Birds - Seabirds

Black-browed Albatross (Thalassarche melanophris)


Scientific Classification:

Kingdom : Animalia
Phylum : Chordata
Class : Aves
Order : Procellariiformes
Family : Diomedeidae
Genus : Thalassarche
Species :
T. Melanophris


Description:


The Black-browed albatross(Thalassarche melanophris), also known as theBlack-browed mollymawk, is a large seabird of the albatross family Diomedeidae; it is the most widespread and common member of its family.

Mollymawks are albatrosses in the family Diomedeidae and order Procellariiformes, which also includes shearwaters, fulmars, storm petrels, and diving petrels. These birds share certain identifying features. They have nasal passages that attach to the upper bill called naricorns, although the nostrils on the albatross are on the sides of the bill. The bills of Procellariiformes are also unique in that they are split into between seven and nine horny plates. They produce a stomach oil made up of wax esters and triglycerides that is stored in the proventriculus. This is used against predators as well as being an energy-rich food source for chicks and also for the adults during their long flights. The albatross also has a salt gland above the nasal passage which helps to remove salt from the ocean water that they imbibe. The gland excretes a high saline solution through the bird's nose.

The black-browed albatross was first described as Diomedea melanophrisby Coenraad Jacob Temminck, in 1828, based on a specimen from the Cape of Good Hope.

The black-browed albatross is a medium-sized albatross, at 80 to 95 cm (31–37 in) longwith a 200 to 240 cm (79–94 in) wingspan and an average weight of 2.9 to 4.7 kg (6.4–10.4 lb). It can have a natural lifespan of over 70 years. It has a dark grey saddle and upperwings that contrast with the white rump, and underparts. The underwing is predominantly white with broad, irregular, black margins. It has a dark eyebrow and a yellow-orange bill with a darker reddish-orange tip. Juveniles have dark horn-colored bills with dark tips, and a grey head and collar. They also have dark underwings. The features that distinguish it from other mollymawks (except the closely related Campbell albatross) are the dark eyestripe which gives it its name, a broad black edging to the white underside of its wings, white head and orange bill, tipped darker orange.


Binomial Name:

Name : Thalassarche melanophris
Taxonomist :
Coenraad Jacob Temminck (Amsterdam - Netherlands)
Year :
1828
Subspecies : 
None, or not data available
Synonyms :
Diomedea melanophris


Conservation Status by IUCN:

Status : Near-threatened species

A Near-threatened speciesis a species which has been categorized as "Near Threatened" (NT)by the International Union for Conservation of Nature as that may be considered threatened with extinction in the near future, although it does not currently qualify for the threatened status. The IUCN notes the importance of re-evaluating near-threatened taxa at appropriate intervals.


Philatelic Issues


2004 – Uruguay – Stamp 4 of 4, from Seabirds Series


Issue information:

Country: Uruguay
Date: January 22nd, 20
Printed: 15.000 copies
Type : Stamp from Series of 4 Stamps
Value :
UYP 14

Stamp : Rectangular
Size: 27 mm. x 39 mm.
Perforation: Circular
Gum: Water Activated

viernes, 4 de marzo de 2016

ANIMALS – BIRDS – SEABIRDS – CAPE PETREL (DAPTION CAPENSE)


Animals - Birds - Seabirds

Cape petrel (Daption capense)


Scientific Classification:

Kingdom : Animalia
Phylum : Chordata
Class : Aves
Order : Procellariiformes
Family : Procellariidae
Genus :Daption 
Species :
D. Capense


Description:

The Cape petrel(Daption capense), also called the Cape pigeon, Pintado petrel, or Cape fulmar, is a common seabirdof the Southern Ocean from the family Procellariidae. It is the only member of the genus Daption, and is allied to the fulmarine petrels, and the giant petrels. They are extremely common seabirds with an estimated population of around 2 million.

The Cape petrel is the only known member of the genus Daption and is in turn a member of the family Procellariidae and order Procellariiformes. There appears to be a subgroup within the family consisting of the giant petrels, the members of Fulmarus, the Antarctic petrel, and the snow petrel.

All Procellariiformes share certain identifying features. First, they have nasal passages that attach to the upper bill called naricorns. The bills of Procellariiformes are also unique in that they are split into between seven and nine horny plates. They produce a stomach oil made up of wax esters and triglycerides that is stored in the proventriculus. This can be sprayed out of their mouths as a defence against predators and as an energy rich food source for chicks and for the adults during their long flights. Finally, they also have a salt gland that is situated above the nasal passage and helps desalinate their bodies, due to the high amount of ocean water that they imbibe. It excretes a high saline solution from their nose.

The Cape petrel is a unique looking petrel. It has a black head and neck, and a white belly, breast, and its underwing is white with a black border. Its back, and upperwings are black and white speckled, as is its tail which also has a band of black. When fully grown, their wings span 86 cm (34 in)and they are 39 cm (15 in) long.


Binomial Name:

Name : Daption capense
Taxonomist :
Carl Linnaeus (Småland - Sweden)
Year :
1758
Subspecies :
2 (Capense, Australe)
Synonyms : 
None, or not data available


Conservation Status by IUCN:

Status :Least Concern

Has been categorized by the International Union for Conservation of Nature as evaluated but not qualified for any other category. As such they do not qualify as threatened, near threatened, or (prior to 2001) conservation dependent.


Philatelic Issues


2004 – Uruguay – Stamp 3 of 4, from Seabirds Series


Issue information:

Country: Uruguay
Date: January 22nd, 20
Printed: 15.000 copies
Type : Stamp from Series of 4 Stamps
Value :
UYP 14

Stamp : Rectangular
Size: 27 mm. x 39 mm.
Perforation: Circular
Gum: Water Activated

jueves, 3 de marzo de 2016

ANIMALS – BIRDS – SEABIRDS – NORTHERN GIANT PETREL (MACRONECTES HALLI)


Animals - Birds - Seabirds

Northern giant petrel (Macronectes halli)


Scientific Classification:

Kingdom : Animalia
Phylum : Chordata
Class : Aves
Order : Procellariiformes
Family : Procellariidae
Genus : Macronectes
Species :
M. Halli


Description:

The Northern giant petrel (Macronectes halli), also known as the Hall's giant petrel, is a large predatory seabird of the southern oceans. Its distribution overlaps broadly with the similar southern giant petrel, though it overall is centred slightly further north.

The northern giant petrel along with its counterpart, the southern giant petrel, make up the Macronectes genus. They come from the Procellariiformes order, which are referred to as tube-nosed seabirds, due to their unique nose structure. All tube-noses have tubular nostrils, and all Procellariidae have the openings on top of the upper portion of the bill. Procellariiformes also have between seven and nine distinct horny plates for their bill, and petrels have one of these plates that form the hooked portion of their upper bill called their maxillary unguis. They produce a stomach oil made up of wax esters and triglycerides that is stored in the proventriculus. This can be sprayed out of their mouths as a defence against predators as well as an energy rich food source for chicks and for the adults during their long flights. Finally, they also have a salt gland that is situated above the nasal passage and helps desalinate their bodies, due to the high amount of ocean water that they imbibe. It excretes a concentrated saline solution from their nostrils.

The northern giant petrel averages 90 cm (35 in) in length, with a range of 80 to 95 cm (31 to 37 in), possessing a wingspan of 150 to 210 cm (59 to 83 in). Size is somewhat variable and this species is broadly the same size as its southern sister species. The largest-bodied colony is in the South Georgia Islands, where 56 males averaged 4.9 kg (11 lb) and 43 females average 3.72 kg (8.2 lb). The smallest-bodied are on the Chatham Islands, where 19 males averaged 3.66 kg (8.1 lb) and 21 females averaged 2.83 kg (6.2 lb). Overall, weight for the species can range from 2.5 to 5.8 kg (5.5 to 12.8 lb). Its plumage consists of grey-brown body with lighter colored forehead, sides of face, and chin. Its bill is between 90 and 110 mm (3.5–4.3 in) long, being slightly longer on average than the southern giant petrel, and is pinkish yellow with a brown tip, and its eyes are grey.


Binomial Name:

Name : Macronectes halli
Taxonomist :
Gregory Mathews (Australia)
Year :
1912
Subspecies : 
None, or not data available
Synonyms :
None, or not data available

Conservation Status by IUCN:

Status :Least Concern

Has been categorized by the International Union for Conservation of Nature as evaluated but not qualified for any other category. As such they do not qualify as threatened, near threatened, or (prior to 2001) conservation dependent.


Philatelic Issues


2004 – Uruguay – Stamp 2 of 4, from Seabirds Series


Issue information:

Country: Uruguay
Date: January 22nd, 20
Printed: 15.000 copies
Type : Stamp from Series of 4 Stamps
Value :
UYP 14

Stamp : Rectangular
Size: 27 mm. x 39 mm.
Perforation: Circular
Gum: Water Activated

martes, 1 de marzo de 2016

ANIMALS – BIRDS – SEABIRDS – GREAT SHEARWATER (ARDENNA GRAVIS)


Animals - Birds - Seabirds

Great shearwater (Ardenna gravis)


Scientific Classification:

Kingdom : Animalia
Phylum : Chordata
Class : Aves
Order : Procellariiformes
Family : Procellariidae
Genus : Ardenna
Species :
A. Gravis


Description:

The Great shearwater(Ardenna gravis; formerly Puffinus gravis) is a large shearwater in the seabirdfamily Procellariidae. Its relationships are unclear. It belongs in the group of large species that have been separated as genus Ardenna (Penhallurick & Wink 2004); within these, it might be allied with the other black-billed, blunt-tailed species, the short-tailed shearwater and especially the sooty shearwater (Austin 1996, Heidrich et al. 1998). Alternatively (Austin 1996, Austin et al. 2004), it could be a monotypic subgenus (Ardenna sensu stricto), an Atlantic representative of the light-billed Hemipuffinus group (pink-footed shearwater and flesh-footed shearwater).

This species breeds on Nightingale Island, Inaccessible Island, Tristan da Cunha, and Gough Island. It is one of only a few bird species to migrate from breeding grounds in the Southern Hemisphere to the Northern Hemisphere, the normal pattern being the other way round. This shearwater nests in large colonies, laying one white egg in a small burrow or in the open grass. These nests are visited only at night to avoid predation by large gulls.

This shearwater is 43–51 cm in length with a 105–122 cm wingspan. It is identifiable by its size, dark upperparts, and underparts white except for a brown belly patch and dark shoulder markings. It has a black cap, black bill, and a white "horseshoe" on the base of the tail. The stiff flight, like a large Manx shearwater, is also distinctive. The only other large shearwater in its range is the all-dark sooty shearwater.


Binomial Name:

Name : Ardenna gravis
Taxonomist :
O'Reilly
Year :
1818
Subspecies : 
None or not data available
Synonyms :
Puffinus gravis, Procellaria gravis


Conservation Status by IUCN:

Status :Least Concern

Has been categorized by the International Union for Conservation of Nature as evaluated but not qualified for any other category. As such they do not qualify as threatened, near threatened, or (prior to 2001) conservation dependent.


Philatelic Issues


2004 – Uruguay – Stamp 1 of 4, from Seabirds Series


Issue information:

Country: Uruguay
Date: January 22nd, 20
Printed: 15.000 copies
Type : Stamp from Series of 4 Stamps
Value :
UYP 14

Stamp : Rectangular
Size: 27 mm. x 39 mm.
Perforation: Circular
Gum: Water Activated

miércoles, 3 de febrero de 2016

ANIMALS – BIRDS – SEABIRDS – BROWN SKUA (STERCORARIUS ANTARCTICUS)


Animals - Birds - Seabirds

Brown skua (Stercorarius antarcticus)


Scientific Classification:

Kingdom : Animalia
Phylum : Chordata
Class : Aves
Order : Charadriiiformes
Family :Stercoriidae
Genus : Stercorarius
Species :
S. Antarcticus


Description:

The Brown skua(Stercorarius antarcticus), also known as the Antarctic skua, subantarctic skua, southern great skua, southern skua, or hākoakoa (Māori), is a large seabird that breeds in the subantarctic and Antarctic zones and moves further north when not breeding. Its taxonomy is highly complex and a matter of dispute, with some splitting it into two or three species: Falkland skua (S. antarcticus), Tristan skua (S. hamiltoni), and subantarctic skua (S. lönnbergi). To further confuse, it hybridizes with both the south polar and Chilean skuas, and the entire group has been considered to be a subspecies of the great skua, a species otherwise restricted to the Northern Hemisphere.

It feeds on fish (often via kleptoparasitism), other birds, small mammals, eggs and carrion.

This is the heaviest species of skua and rivals the largest gulls, the great black-backed gull and glaucous gull, as the heaviest species in the shorebird order although not as large in length or wingspan. It is 52–64 cm (20–25 in) in length, 126–160 cm (50–63 in) in wingspan and has abody mass of 1.2–2.18 kg (2.6–4.8 lb). S. a. hamiltoni measured on Gough Island, weighed an average of 1.43 kg (3.2 lb) in 9 males and 1.65 kg (3.6 lb) in 9 females. S. a. lönnbergi measured in the Chatham Islands weighed an average of 1.73 kg (3.8 lb) in 30 males and an average of 1.93 kg (4.3 lb) in 32 females. The latter is the highest colony mean body mass for any living species of shorebird.


Binomial Name:

Name : Stercorarius antarcticus
Taxonomist : René Primevère Lesson (Rochefort - France)
Year :
1831
Subspecies :
3 (Antarticus, Hamiltoni, Ionnbergi)
Synonyms :
Catharacta antarctica


Conservation Status by IUCN:

Status : Least Concern

Has been categorized by the International Union for Conservation of Nature as evaluated but not qualified for any other category. As such they do not qualify as threatened, near threatened, or (prior to 2001) conservation dependent.


Philatelic Issues


2008 – Uruguay – Stamp 1 of 2, from Spring Series


Issue information:

Country: Uruguay
Date: October 7th, 2008
Printed: 10.000 Copies
Type: Stamp from Series of 2 Stamps
Value:UYP 20

Stamp: Rectangular
Size: 35 mm. x 22 mm.
Perforation: Circular
Gum: Water Activated

viernes, 22 de enero de 2016

ANIMALS – BIRDS – SEABIRDS – AMERICAN OYSTERCATCHER (HAEMATOPUS PALLIATUS)


Animals - Birds - Seabirds

American oystercatcher (Haematopus palliatus)


Scientific Classification:

Kingdom : Animalia
Phylum : Chordata
Class : Aves
Order : Charadriiformes
Family :Haematopodidae
Genus : Haematopus
Species :
H. Palliatus


Description:

The American oystercatcher (Haematopus palliatus), occasionally called the American pied oystercatcher, is a member of family Haematopodidae. The bird is marked by its black and white body and a long, thick orange beak. This shorebird is approximately 19 inches (42 – 52 cm) in length.

The American oystercatcher has distinctive black and white plumage and a long, bright orange beak. The head and breast are black and the back, wings and tail greyish-black. The underparts are white, as are feathers on the inner part of the wing which become visible during flight. The irises are yellow and the eyes have orange orbital rings. The legs are pink. Adults are about 19 inches (480 mm) in length.

The American oystercatcher is found on the Atlantic coast of North America from New England to northern Florida, where it is also found on the Gulf coast, and south to Brazil, Uruguay and Argentina. It is found also in the Pacific coast of California, Mexico, Central America, Peru, and Chile. In the 19th century they became locally extinct in the northeast of the United States due to market hunting and egg collecting. After receiving protection under the Migratory Bird Treaty Act, their range extended northward to re-occupy historical habitat in New England.

Oystercatchers are closely tied to coastal habitats. They nest on beaches on coastal islands and feed on marine invertebrates. The large, heavy beak is used to pry open bivalve mollusks. Oystercatchers raise a clutch of two or three eggs. In winter, they are found in flocks along the coast from central New Jersey to the Gulf of Mexico.


Binomial Name:

Name : Haematopus palliatus
Taxonomist :
Coenraad Jacob Temminck (Amsterdam - Netherlands)
Year :
1820
Subspecies : 
None or not data available
Synonyms :
None or not data available


Conservation Status by IUCN:

Status :Least Concern

Has been categorized by the International Union for Conservation of Nature as evaluated but not qualified for any other category. As such they do not qualify as threatened, near threatened, or (prior to 2001) conservation dependent.


Philatelic Issues


2011 – Uruguay – Unique Stamp, from “Isla de Flores” National Park Series


Issue information:

Country: Uruguay
Date: November 16th, 2011
Printed: 15.000 copies
Type : Unique Stamp from Series
Value :
UYP 12

Stamp : Rectangular
Size: 47 mm. x 32 mm.
Perforation: Circular
Gum: Water Activated

jueves, 21 de enero de 2016

ANIMALS – BIRDS – SEABIRDS – KELP GULL (LARUS DOMINICANUS)


Animals - Birds - Seabirds

Kelp gull (Larus dominicanus)


Scientific Classification:

Kingdom : Animalia
Phylum : Chordata
Class : Aves
Order : Charadriiformes
Family :Laridae
Genus : Larus
Species :
L. Dominicanus


Description:

The Kelp gull(Larus dominicanus), also known as the Dominican gull, is a gullwhich breeds on coasts and islands through much of the southern hemisphere. The nominate L. d. dominicanus is the subspecies found around South America, parts of Australia (where it overlaps with the Pacific gull), and New Zealand (where it is known as the southern black-backed gull or by its Māori name karoro). L. d. vetula (known as the Cape gull) is a subspecies occurring around southern Africa.

The specific name comes from theDominican Order of friars, who wear black and white habits.

The kelp gull superficially resembles two gulls from further north in the Atlantic Ocean, the lesser black-backed gull and the great black-backed gull and is intermediate in size between these two species. This species ranges from 54 to 65 cm (21 to 26 in) in total length, from 128 to 142 cm (50 to 56 in) in wingspan and from 540 to 1,390 g (1.19 to 3.06 lb) in weight. Adult males and females weigh on average 1,000 g (2.2 lb) and 900 g (2.0 lb) respectively. Among standard measurements, the wing chord is 37.3 to 44.8 cm (14.7 to 17.6 in), the bill is 4.4 to 5.9 cm (1.7 to 2.3 in) and the tarsus is 5.3 to 7.5 cm (2.1 to 3.0 in). The adult kelp gull has black upperparts and wings. The head, underparts, tail, and the small "mirrors" at the wing tips are white. The bill is yellow with a red spot, and the legs are greenish-yellow (brighter and yellower when breeding, duller and greener when not breeding). The call is a strident ki-och. Juveniles have dull legs, a black bill, a dark band in the tail, and an overall grey-brown plumage densely edged whitish, but they rapidly get a pale base to the bill and largely white head and underparts. They take three or four years to reach maturity.


Binomial Name:

Name : Larus dominicanus
Taxonomist :
Martin Hinrich Carl Lichtenstein (Hamburg - Germany)
Year :
1823
Subspecies :
5 (Dominicanus, Vetula, Judithae, Melisandae, Austrinus)
Synonyms :
None or not data available


Conservation Status by IUCN:

Status :Least Concern

Has been categorized by the International Union for Conservation of Nature as evaluated but not qualified for any other category. As such they do not qualify as threatened, near threatened, or (prior to 2001) conservation dependent.

Philatelic Issues


2011 – Uruguay – Unique Stamp, from “Isla de Flores” National Park Series


Issue information:

Country: Uruguay
Date: November 16th, 2011
Printed: 15.000 copies
Type : Unique Stamp from Series
Value :
UYP 12

Stamp : Rectangular
Size: 47 mm. x 32 mm.
Perforation: Circular
Gum: Water Activated

miércoles, 20 de enero de 2016

ANIMALS – BIRDS – SEABIRDS – SNOWY EGRET (EGRETTA THULA) #2


Animals - Birds - Seabirds

Snowy egret (Egretta thula)


Scientific Classification:

Kingdom : Animalia
Phylum : Chordata
Class : Aves
Subclass : Neornithes
Infraclass :
Neognathae
Superorder :
Neoaves
Order :
Pelecaniformes
Family :Ardeidae
Genus : Egretta
Species : E. Thula


Description:

The Snowy egret(Egretta thula) is a small white heron. It is the American counterpart to the very similar Old World little egret, which has established a foothold in the Bahamas. At one time, the beautiful plumes of the snowy egret were in great demand by market hunters as decorations for women's hats. This reduced the population of the species to dangerously low levels.[citation needed] Now protected in the United States by law, under the Migratory Bird Treaty Act, this bird's population has rebounded.

Adults are typically 61 cm (24 in) long and weigh 375 g (0.827 lb) They have a slim black bill and long black legs with yellow feet. The area of the upper bill, in front of the eyes, is yellow but turns red during the breeding season, when the adults also gain recurved plumes on the back, making for a "shaggy" effect. The juvenile looks similar to the adult, but the base of the bill is paler, and a green or yellow line runs down the back of the legs.

Snowy Egrets nest in colonies on thick vegetation in isolated places—such as barrier islands, dredge-spoil islands, salt marsh islands, swamps, and marshes. They often change location from year to year. During the breeding season Snowy Egrets feed in estuaries, saltmarshes, tidal channels, shallow bays, and mangroves. They winter in mangroves, saltwater lagoons, freshwater swamps, grassy ponds, and temporary pools, and forage on beaches, shallow reefs, and wet fields.


Binomial Name:

Name : Egretta thula
Taxonomist :
Juan Ignacio Molina (Guaraculén, Chile)
Year :
1782
Subspecies :
2 (Thula, Brewsteri)
Synonyms :
Ardea thula, Egretta candidissima, Ardea candidissima


Conservation Status by IUCN:

Status :Least Concern

Has been categorized by the International Union for Conservation of Nature as evaluated but not qualified for any other category. As such they do not qualify as threatened, near threatened, or (prior to 2001) conservation dependent.

Philatelic Issues


2011 – Uruguay – Unique Stamp, from “Isla de Flores” National Park Series


Issue information:

Country: Uruguay
Date: November 16th, 2011
Printed: 15.000 copies
Type : Unique Stamp from Series
Value :
UYP 12

Stamp : Rectangular
Size: 47 mm. x 32 mm.
Perforation: Circular
Gum: Water Activated

viernes, 15 de enero de 2016

ANIMALS – BIRDS – SEABIRDS – RUFOUS-CHESTED PLOVER (CHARADRIUS MODESTUS)


Animals - Birds - Seabirds

Rufous-Chested Plover (Charadrius modestus)


Scientific Classification:

Kingdom : Animalia
Phylum : Chordata
Class : Aves
Order : Charadriiformes
Family :Charadriidae
Genus : Charadrius
Species :
C. Modestus


Description:

The Rufous-chested ploveror Rufous-chested dotterel (Charadrius modestus) is a species of bird in the Charadriidae family. It breeds in southern parts of Argentina and Chile and on the Falkland Islands. Some birds migrate north in winter, reaching as far as Uruguay, southern Brazil and occasionally Peru. Its natural habitats are temperate grassland and sandy shores.


Binomial Name:

Name : Charadrius modestus
Taxonomist : Martin Hinrich Carl Lichtenstein (Hamburg - Germany)
Year :
1823
Subspecies : 
None or not data available
Synonyms :
None or not data available


Conservation Status by IUCN:

Status :Least Concern

Has been categorized by the International Union for Conservation of Nature as evaluated but not qualified for any other category. As such they do not qualify as threatened, near threatened, or (prior to 2001) conservation dependent.


Philatelic Issues


2015 - Uruguay - Stamp 2 of 4, from Spring Series


Issue information:

Country: Uruguay
Date: August 31st, 2012
Printed: 15.000 Copies
Type: Stamp from Series of 4 Stamps
Value: UYP 12

Stamp: Rectangular
Size: 39 mm. x 27 mm.
Perforation: Circular
Gum: Water Activated

miércoles, 6 de enero de 2016

ANIMALS – BIRDS – SEABIRDS - RED KNOT (CALIDRIS CANUTUS)


Animals - Birds - Seabirds

Red Knot (Calidris canutus)


Scientific Classification:

Kingdom : Animalia
Phylum : Chordata
Class : Aves
Order : Charadriiformes
Family :Scolopacidae
Genus : Calidris
Species :
C. Canutus


Description:

The Red knot(Calidris canutus) (just knotin Europe) is amedium-sized shorebird which breeds in tundra and the Arctic Cordillera in the far north of Canada, Europe, and Russia. It is a large member of the Calidris sandpipers, second only to the great knot. Six subspecies are recognised.

Their diet varies according to season; arthropods and larvae are the preferred food items at the breeding grounds, while various hard-shelled molluscs are consumed at other feeding sites at other times. North American breeders migrate to coastal areas in Europe and South America, while the Eurasian populations winter in Africa, Papua New Guinea, Australia, and New Zealand. This species forms enormous flocks when not breeding.

This Red Knot was first described by Linnaeus in the landmark 1758 tenth edition of his Systema Naturae as Tringa canutus. One theory is that it gets its name and species epithet from King Canute, Knot being another form of Canute; the name would refer to the knot's foraging along the tide line and the story of Canute and the tide. Another etymology is that the name is onomatopoeic, based on the bird's grunting call note.


Binomial Name:

Name : Calidris canutus
Taxonomist : Carl Linnaeus (Småland - Sweden)
Year :
1758
Subspecies :
6 (Roselaari, Rufa, Canutus, Islandica, Rogersi, Piersmai)
Synonyms :
Tringa canutus


Conservation Status by IUCN:

Status :Least Concern

Has been categorized by the International Union for Conservation of Nature as evaluated but not qualified for any other category. As such they do not qualify as threatened, near threatened, or (prior to 2001) conservation dependent.

Philatelic Issues


2013 – Uruguay – Stamp 1 of 2, from Tourist Sites:Atlantic Coastline Series


Issue information:

Country: Uruguay
Date: December 4th, 2015
Printed: 15.000 Copies
Type: Stamp from Series of 2 Stamps
Value: UYP 15

Stamp: Rectangular
Size: 27 mm. x 39 mm.
Perforation: Circular
Gum: Water Activated

martes, 22 de diciembre de 2015

ANIMALS - BIRDS - SEABIRDS - PLUMBEOS IBIS (THERISTICUS CAERULESCENS)


Animals - Birds - Seabirds

Plumbeous ibis (Theristicus caerulescens)


Scientific Classification:

Kingdom : Animalia
Phylum : Chordata
Class : Aves
Order : Pelecaniformes
Family :Threskiornithidae
Genus : Theristicus
Species :
T. Caerulescens


Description:

The Plumbeous ibis(Theristicus caerulescens) is a species of bird in the Threskiornithidae family. It is found in grassland, savanna, fields and marshes in central South America, ranging in south-central and south-eastern Brazil, eastern and northern Bolivia, Paraguay, Uruguay and northern Argentina. It is generally fairly common and is easily seen in the Pantanal among other areas.

It is a distinctive bird, being overall grey with elongated plumes on the nape and neck, a narrow white band on the forehead and reddish legs. Unlike many other ibises, the plumbeous ibis is rather asocial and typically seen alone or in pairs.

Its name is derived from the Latin word for lead, plumbum, in reference to its lead-grey colour.


Binomial Name:

Name : Theristicus caerulescens
Taxonomist : Louis Jean Pierre Vieillot (Yvetot - France)
Year :
1817
Subspecies : 
None or not data available
Synonyms :
None or not data available


Conservation Status by IUCN:

Status :Least Concern

Has been categorized by the International Union for Conservation of Nature as evaluated but not qualified for any other category. As such they do not qualify as threatened, near threatened, or (prior to 2001) conservation dependent.

Philatelic Issues


2015 - Uruguay - Stamp 5 of 10, from Wetland Animals Series


Issue information:

Country: Uruguay
Date: June 5th, 2015
Printed: 10.000 Copies
Type: Stamp from Series of 10 Stamps
Value: UYP 15

Stamp: Rectangular
Size: 39 mm. x 27 mm.
Perforation: Circular
Gum: Water Activated

ANIMALS - BIRDS - SEABIRDS - SNOWY EGRET (EGRETTA THULA)


Animals - Birds - Seabirds

Snowy egret (Egretta thula)


Scientific Classification:

Kingdom : Animalia
Phylum : Chordata
Class : Aves
Subclass : Neornithes
Infraclass :
Neognathae
Superorder :
Neoaves
Order :
Pelecaniformes
Family :Ardeidae
Genus : Egretta
Species : E. Thula


Description:

The Snowy egret(Egretta thula) is a small white heron. It is the American counterpart to the very similar Old World little egret, which has established a foothold in the Bahamas. At one time, the beautiful plumes of the snowy egret were in great demand by market hunters as decorations for women's hats. This reduced the population of the species to dangerously low levels.[citation needed] Now protected in the United States by law, under the Migratory Bird Treaty Act, this bird's population has rebounded.

Adults are typically 61 cm (24 in) long and weigh 375 g (0.827 lb) They have a slim black bill and long black legs with yellow feet. The area of the upper bill, in front of the eyes, is yellow but turns red during the breeding season, when the adults also gain recurved plumes on the back, making for a "shaggy" effect. The juvenile looks similar to the adult, but the base of the bill is paler, and a green or yellow line runs down the back of the legs.

Snowy Egrets nest in colonies on thick vegetation in isolated places—such as barrier islands, dredge-spoil islands, salt marsh islands, swamps, and marshes. They often change location from year to year. During the breeding season Snowy Egrets feed in estuaries, saltmarshes, tidal channels, shallow bays, and mangroves. They winter in mangroves, saltwater lagoons, freshwater swamps, grassy ponds, and temporary pools, and forage on beaches, shallow reefs, and wet fields.


Binomial Name:

Name : Egretta thula
Taxonomist :
Juan Ignacio Molina (Guaraculén, Chile)
Year :
1782
Subspecies :
2 (Thula, Brewsteri)
Synonyms :
Ardea thula, Egretta candidissima, Ardea candidissima


Conservation Status by IUCN:

Status :Least Concern

Has been categorized by the International Union for Conservation of Nature as evaluated but not qualified for any other category. As such they do not qualify as threatened, near threatened, or (prior to 2001) conservation dependent.

Philatelic Issues


2015 - Uruguay - Stamp 4 of 8, from Wetland Animals Series


Issue information:

Country: Uruguay
Date: September 30th, 2015
Printed: 10.000 copies
Type : Stamp from Series of 8 Stamps
Value : UYP 15

Stamp : Rectangular
Size: 39 mm. x 27 mm.
Perforation: Circular
Gum: Water Activated

domingo, 20 de diciembre de 2015

ANIMALS - BIRDS - SEABIRDS - BLACK SKIMMER (RYNCHOPS NIGER)


Animals - Birds - Seabirds

Black skimmer (Rynchops niger)


Scientific Classification:

Kingdom : Animalia
Phylum : Chordata
Class : Aves
Order : Charadriiformes
Family :Rynchopidae
Genus : Rynchops
Species :
R. Niger


Description:

The Black skimmer(Rynchops niger) is a tern-like seabird, one of three very similar birds species in the skimmer family. It breeds in North and South America. Northern populations winter in the warmer waters of the Caribbean and the tropical and subtropical Pacific coasts, but the South American races make only shorter movements in response to annual floods which extend their feeding areas in the river shallows.

The black skimmer is the largest of the three skimmer species. It measures 40–50 cm (16–20 in) long with a 107–127 cm (42–50 in) wingspan. This species ranges from 212 to 447 g (7.5 to 15.8 oz), with males averaging about 349 g (12.3 oz), as compared to the smaller female’s 254 g (9.0 oz).[3] The basal half of the bill is red, the rest mainly black, and the lower mandible is much-elongated. The eye has a dark brown iris and catlike vertical pupil, unique for a bird. The legs are red. The call is a barking kak-kak-kak.

Adults in breeding plumage have a black crown, nape and upper body. The forehead and underparts are white. The upper wings are black with white on the rear edge, and the tail and rump are dark grey with white edges. The underwing colour varies from white to dusky grey depending on region.

Non-breeding adults have paler and browner upperparts, and a white nape collar. Immature birds have brown upperparts with white feather tips and fringes. The underparts and forehead are white and the underwings as the adult.





Binomial Name:

Name : Rynchops niger
Taxonomist : Carl Linnaeus (Småland - Sweden)
Year :
1758
Subspecies :
3 (Niger, Cinerescens, Intercedens)
Synonyms :
None or not data available


Conservation Status by IUCN:

Status :Least Concern

Has been categorized by the International Union for Conservation of Nature as evaluated but not qualified for any other category. As such they do not qualify as threatened, near threatened, or (prior to 2001) conservation dependent.

Philatelic Issues


2015 - Uruguay - Stamp 2 of 10, from Wetland Animals Series


Issue information:

Country: Uruguay
Date: June 5th, 2015
Printed: 10.000 Copies
Type: Stamp from Series of 10 Stamps
Value: UYP 15

Stamp: Rectangular
Size: 39 mm. x 27 mm.
Perforation: Circular
Gum: Water Activated