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The roseate tern (Sterna dougallii) is a species of tern in the family Laridae. ... Ireland, which now holds most of the European population (about 1200 pairs).
It has been identified by BirdLife International as an Important Bird Area (IBA) because it supports over 1% of the world population of roseate terns, with reported numbers of from 2000 to 5500 individual birds present. [1] Up to 500 bridled terns have been recorded nesting there, as well as up to 20 black-naped terns.
Black-bellied tern: Sterna acuticauda: 900-1,100 [33] EN [33] [33] Estimate for mature individuals only. Broader range of population estimated at 800–1,600. The estimate to the left is the best available. Species needs further study due to severe declines in population in recent decades. [33] Lava gull: Larus fuliginosus: 900-1,200 [34] VU ...
Birds interchange regularly between all three sites, and form part of a larger Irish Sea tern population together with birds at sites in Ireland such as Rockabill Island. The major threat to the terns here is predation by rats ; in 1978 rats killed 17 adult terns including 14 roseate terns, as well as taking all the eggs and young of that year.
An adult roseate tern catches a sand eel to deliver to a recently fledged chick. The bird was photographed on an unnamed island between Tuckernuck and Muskeget islands to the west of Nantucket.
Rockabill is an important seabird breeding island, especially notable for its terns. It is an internationally important site for roseate terns , with the largest colony in Europe, 1,597 pairs, and 2,085 pairs of Common Terns (2017 data).
American avocet joins parade of rare, unusual birds in Ohio, including black-bellied whistling-duck and roseate tern. It's been a year for unusual bird sightings in the Buckeye State.
The roseate tern is significantly affected by this hunting, with adult survival 10% lower than would otherwise be expected. ... It has a population of fewer than 50 ...