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Like most terns, the Arctic tern has high aspect ratio wings and a tail with a deep fork. [19] The adult plumage is grey above, with a black nape and crown and white cheeks. The upperwings are pale grey, with the area near the wingtip being translucent. The tail is white, and the underparts pale grey. Both sexes are similar in appearance.
Adult terns may be hunted by owls and raptors, and their chicks and eggs may be taken by herons, crows or gulls. [5] [57] Less obvious nest predators include ruddy turnstones in the Arctic, and gull-billed terns in little tern colonies.
All the flight feathers of the Arctic tern are translucent against a bright sky, only the four innermost wing feathers of the common tern share this property. [26] [27] The trailing edge of the outer flight feathers is a thin black line in the Arctic tern, but thicker and less defined in the common. [20]
The number of adult pairs returning to Long Nanny in Northumberland is not as low as feared this year, National Trust rangers say. Anxious wait to see how Arctic terns fare at colony struck by ...
Interesting Facts for Adults. 11. If you cut down a cactus in Arizona, it can result in a class 4 felony and up to 25 years in prison. 12. Wearing headphones for just an hour can increase the ...
Charlotte McConaghy's Migrations is the story of Franny Stone, an Irish-Australian woman who wants to track the last flight of the Arctic terns — birds who migrate from the North Pole to ...
The Antarctic tern does not migrate like the Arctic tern does, but it can still be found on a very large range. This tern species is actually more closely related to the South American tern. [2] Gulls, skuas and jaegers are the primary predators of the bird's eggs and young. The Antarctic tern can be further divided into six subspecies.
the Arctic and sub-Arctic regions of Europe, Asia, and North America (as far south as Brittany and Massachusetts). River tern: Sterna aurantia: inland rivers from Iran east into the Indian Subcontinent and further to Myanmar to Thailand Black-bellied tern: Sterna acuticauda: Pakistan, Nepal, India and Bangladesh, with a separate range in ...