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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.
The arctic tern is K-selected, caring for and aggressively defending a small number of young. Parents feed them fish for a considerable time, and help them fly south to winter. Arctic terns are long-lived birds, with many reaching twenty years of age. They eat mainly fish and small marine invertebrates. The species has an estimated one million ...
Terns are generally long-lived birds, with individuals typically returning for 7–10 breeding seasons. Maximum known ages include 34 for an Arctic tern and 32 for a sooty. Although several other species are known to live in captivity for up to 20 years, their greatest recorded ages are underestimates because the birds can outlive their rings. [5]
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 ...
The Arctic tern migrates the greatest distance of any bird. Seabird migration is similar in pattern to those of the waders and waterfowl. Some, such as the black guillemot Cepphus grylle and some gulls , are quite sedentary; others, such as most terns and auks breeding in the temperate northern hemisphere, move varying distances south in the ...
In fact, at 6, he has excelled past his sister in reading because he has never been subjected to a nonsense visual cue program. As for our daughter, she has continued to study with a tutor at home ...
Laridae is a family of seabirds in the order Charadriiformes that includes the gulls, terns, noddies, skimmers, and white terns (who aren't true terns). It includes around 100 species arranged into 22 genera. They are an adaptable group of mostly aerial birds found worldwide.
OSLO (Reuters) -A small leftwing environmentalist political party in Norway succeeded on Sunday in blocking plans to mine the sea bed at the bottom of the Arctic, by demanding the government scrap ...