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ID tip
The black-tailed gull is medium-sized (46 cm or 18.1 in), with a wingspan of 126–128 cm (49.6–50.4 in). It has yellow legs and a red and black spot at the end of the bill. Males and females have identical plumage and features, although males are larger in size than females. This gull takes four years to reach full adult plumage. As the name suggests, it has a black tail. The bird has a cat-like call, giving it its Japanese name — umineko (海猫, 'sea cat'), and Korean name — gwaeng-yi gull, which means 'cat' gull. In Hachinohe their calls are one of the 100 Soundscapes of Japan.
Text from Wikipedia, licensed CC BY-SA 4.0.
When to see the Black-tailed Gull
One bar for each month, and every month is filled: this bird is recorded here in all twelve. The wide bar is May, the month with the most records.
Where to see the Black-tailed Gull
The map shades 13 countries with regular records, and 3 more in a lighter tone where the bird turns up only as a stray. Everything unshaded has no records. Countries are listed below the map.
Recorded as a rare visitor in United States, Canada, Australia.
About the Black-tailed Gull
The black-tailed gull is a gull native to shorelines of East Asia.
Text adapted from Wikipedia, licensed CC BY-SA 4.0.
Easily confused with
Armenian GullLarus armenicusThe Armenian gull is a fairly large gull species, though it is on average the smallest of the "herring gull" complex.
Side by side: Black-tailed Gull vs Caspian Gull · Black-tailed Gull vs Pacific Gull · Armenian Gull vs Black-tailed Gull · Belcher's Gull vs Black-tailed Gull · Black-tailed Gull vs Slaty-backed Gull
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