Elle a une allure légèrement plus élancée et plus mince et la courbe du bec est un peu moindre que chez la sterne à crête. The Elegant Tern is quite rare away from its range in the eastern North Pacific, but it has been recorded along Atlantic shores in recent years, even nesting in Spain and France on rare occasions! Tous droits réservés © 1996-2020 - Oiseaux.net, Buffon et l'Histoire naturelle des oiseaux, Birds of Northern South America, an identification guide. The Cornell Lab will send you updates about birds, birding, and opportunities to help bird conservation. It nests in just a few colonies in California and in Mexico, the biggest being tiny Isla Rasa in the Gulf of California. La crête est moins hirsute que celle de la sterne à crête. The small island of Isla Rasa in the Gulf of California serves as the breeding ground for 90-97% of the world's population of Elegant Terns. Animals. Le noir de la couronne qui descend jusqu'au niveau de l'œil le dépasse un peu en avant, créant une petite bavure noire alors que chez la Sterne royale le noir s'arrête à l'œil.

C'est une espèce d'Amérique Tropicale. Cette espèce est fragile du fait que 90% de sa population se reproduit sur un seul site. Long, slender yellow to reddish orange bill, appears to droop at tip. Les parties supérieures sont de couleur gris clair, et les inférieures blanches avec parfois des nuances roses sur les plumes du ventre. Birds. A medium-sized, slender tern with a long, thin, slightly drooping bill.

In breeding season Elegant Terns have a shaggy crest. Elegant Terns flutter above the ocean on their long, pale wings, and then plunge into the water to catch small fish, particularly anchovies. The Cornell Lab will send you updates about birds, birding, and opportunities to help bird conservation. Les juvéniles ont le dessus plus pâle avec des motifs écailleux gris.
A medium-sized tern, slim and long-billed, strictly coastal in its occurrence. Occasionnelle en France (7 données homologuées depuis 1981). They have a shaggy black crest, orange bill, dark gray outer primaries, and dark legs. The Elegant Tern is a sleek seabird with a stiletto-like orange bill, a shaggy black crest, and a blush of rose-pink to the underside during the breeding season. Breeding birds have a black crest that is shaggy at the rear. Elle niche le long des côtes du Pacifique, de la Californie du Sud et du Mexique. Elle pêche différentes variétés de poissons, comme les sardines, les gobies, les athérines et les maquereaux, mais l'anchois du nord (Mordax d'engraulis) et sa proie principale.

La sterne élégante se nourrit presque exclusivement de poissons et occasionnellement de crustacés. In size, shape, and callnotes, very similar to the Sandwich Tern of the Atlantic Coast.

Les parties supérieures sont de couleur gris clair, et les inférieures blanches avec parfois des nuances roses sur les plumes du ventre. The wings are long, slender and pointed. Identification record : Elegant Tern (Thalasseus elegans) is a bird which belongs to the family of Laridés and the order of Charadriiformes. Often forages in large flocks, mixed with other seabird species. Les pattes sont noires.

Get Instant ID help for 650+ North American birds. The Elegant Tern prefers to breed on the western coasts of the United States and Mexico. Nests on beaches and sandy islands. They're much easier to find during spring and fall along the California coast, where they feed just past the surf line in the Pacific Ocean as well as in protected ocean waters such as San Diego Bay, Morro Bay, Monterey Bay, and San Francisco Bay.

After breeding, Elegant Terns disperse far and wide in search of plentiful anchovy stocks.

Nonbreeding adults have white foreheads and lack the rosy tint below. The bill on juveniles is yellower than adults. Get Instant ID help for 650+ North American birds. Mis à jour le 01/10/2020 01:29:29 Elles affectent également les lagunes saumâtres et les marais d'eau douce.

Après la saison de reproduction, les sternes élégantes se dispersent au nord le long de la côte du Pacifique, dans la partie nordique de la Californie, mais les années où les eaux sont plus chaudes on peut les retrouver jusqu'en Oregon, Washington ou sur les côtes méridionales de la Colombie Britannique. Moves northward for a short period after breeding where they form large flocks. Quelques critères permettent de la distinguer des autres sternes proches. The Elegant Tern (Sterna elegans) is a crested tern found throughout the eastern Pacific coastal region. Breeds in very dense colonies on islands and beaches. Les sternes élégantes sont généralement trouvées dans les estuaires aux eaux peu profondes.

Elle est sensiblement plus pâle sur le dessus que la sterne à crête, avec une culotte blanche (sans gris). See more images of this species in Macaulay Library. Juveniles are grayer and more patterned above, with a gray crown. Formerly just a late-summer visitor to our Pacific Coast from its Mexican breeding colonies, the Elegant Tern has been reaching California in increasing numbers since about 1950, nesting there since 1959. It nests in just a few colonies in California and in Mexico, the biggest being tiny Isla Rasa in the Gulf of California.

Cet oiseau très sociable, niche en groupe très serré, souvent à seulement 20 ou 30 cm de distance, pour limiter la prédation par des espèces plus agressives. Note long shaggy crest at the rear of the head on nonbreeding birds. Les pattes sont noires. This bird was previously native to much of North and Central Americas.
La sterne élégante a un aspect très semblable à la Sterne royale mais on peut les différencier grâce à son bec qui est plus long, plus étroit, légèrement incurvé et souvent d'un orange plus vif, et par sa huppe qui est plus hirsute. While migrating or during the wintering season, Elegant Terns take rest on coastal mudflats, sandy beaches, or rocky shorelines. Congregates on rocky outcrops, beaches, or pilings in the water. Les sternes élégantes se reproduisent dans seulement cinq colonies dont plus de 90% sur Isla Rasa dans le golfe de Californie. Isla Rasa, Gulf of California, Mexico.

Cette sterne de taille moyenne, a un long bec orange, une calotte noire, avec un plumage ébouriffé à la nuque. The Elegant Tern is a sleek seabird with a stiletto-like orange bill, a shaggy black crest, and a blush of rose-pink to the underside during the breeding season.

The Elegant Tern was first found nesting in the United States in 1959 in San Diego Bay, California.

Elegant Terns flutter above the ocean on their long, pale wings, and then plunge into the water to catch small fish, particularly anchovies. More than 90% of all Elegant Terns nest in a single colony on Isla Rasa in the Gulf of California (Sea of Cortez), Mexico. Medium-sized tern with pointy wings. After … Breeding adults are pale gray above, white with pink bloom below (often hard to see). The distribution and abundance of these small fish, in turn, is heavily influenced by oceanographic conditions such as El Niño. Nonbreeding birds have a shaggy black band around the back of head. C'est un "Kririèèk" puissant. Usually forages within 10 miles of land, and often within sight of land. Long, orange bill droops slightly at the tip. Listen for their rolling karr-eek calls, similar to those of the larger Royal Tern but shorter and higher in pitch. L'espèce subit de grandes fluctuations de sa population en raison des évènements climatiques et pourrait être négativement affectée par le changement climatique, les intrusions humaines et par une pêche excessive. Gulls, Terns, and Skimmers(Order: Charadriiformes, Family:Laridae).

Since the 1980s, several more colonies have been established in California. Also note dark primaries in flight.

Pendant la période de reproduction elles fréquentent les îles isolées, rocheuses ou arénacées, en compagnie d'autres laridés beaucoup plus grands comme les goélands de Heermann et les sternes caspiennes.

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