Black-tailed Gull (Larus crassirostris)
Illustration redrawn by AI from a real photograph

Black-tailed Gull

Larus crassirostris Vieillot, 1818

≈54 cmLength124 cmWingspan561 gWeight

It is a medium-sized gull with a black tail, yellow legs and cat-like calls.

Busiest months: May · Most records: China, Japan, South Korea

Least Concern

How to identify

Field marks

  1. Tail black
  2. Red and black spots near end of bill
  3. Legs yellow
  4. Medium-sized gull, about 46 cm in body length

Male, female and young

Sexes identical in plumage, male larger; takes four years to acquire full adult plumage.

Voice

The most frequent call is a cat-like mewing, used as a contact call.

Where and when it's recorded

Busiest months: May · Most records: China, Japan, South Korea

Black-tailed Gull has been recorded at 443 of the 8,276 birding hotspots we track, in 10 countries and regions.

Records by month Northern Hemisphere

Where it's recorded most

  1. Edogawa Ward – Kasai Rinkai Park / Kasai Kaihin ParkJapan1,243 records
  2. Funabashi – Funabashi Sanbanze Seaside ParkJapan863 records
  3. Nanpu MudflatChina750 records
More places
  1. Lanyang River Estuary IBATaiwan (China)449 records
  2. Wajima – Hegurajima (island)Japan418 records
  3. Eocheong-do (island)South Korea399 records
  4. Baengnyeong-do (island)South Korea374 records
  5. Lanyang River Estuary IBA – North Shore Observation SpotTaiwan (China)362 records
  6. Nanhui DongtanChina319 records
  7. Sakata – Tobishima (island)Japan305 records

Countries and regions with the most records

ChinaJapanSouth KoreaThailandUnited StatesCanadaPhilippinesAustralia

eBird records via GBIF up to 2024-12-31. A record means someone listed it; more records partly mean more birders, not more birds.

Questions

How big is the Black-tailed Gull?

The Black-tailed Gull is about ≈54 cm long, with a wingspan of 124 cm and weighs around 561 g.

Where does the Black-tailed Gull live?

Its breeding range: Palearctic: coasts and islets of eastern Siberia, Sakhalin and Kuril Islands (southeastern Russia), Hokkaido and Honshu (northern, central Japan), Korean Peninsula, eastern China and Matsu Islands (=Lienchiang County; west of Taiwan (China)). It is most often recorded in China, Japan and South Korea.

When is the best time to see the Black-tailed Gull?

At the hotspots we track, it is recorded most in May (Northern Hemisphere).

Is the Black-tailed Gull endangered?

The IUCN Red List classifies the Black-tailed Gull as Least Concern.

What does the Black-tailed Gull eat?

Main food: Fish, shrimp & shellfish.

What family is the Black-tailed Gull in?

It belongs to the family Gulls, Terns, Skimmers (Laridae), order Charadriiformes.

At a glance

Length
≈54 cm
Wingspan
124 cm
Weight
561 g
Habitat
Coast & tidal flats
Diet
Fish, shrimp & shellfish
Lifestyle
Feeds in the air
Migration
Partial migrant
Conservation
Least Concern
More measurements
Wing
364 mm
Tail
135 mm
Bill
59 mm
Tarsus
53 mm

Averages from the AVONET dataset; length from field guides where available.

Range

Palearctic: coasts and islets of eastern Siberia, Sakhalin and Kuril Islands (southeastern Russia), Hokkaido and Honshu (northern, central Japan), Korean Peninsula, eastern China and Matsu Islands (=Lienchiang County; west of Taiwan (China))

Breeding range, IOC World Bird List 15.2

Classification

Genus
Larus

Other birds in the genus Larus

Black-tailed Gull

Download illustration

Free to use with credit: “Illustration: Bird Album (birdalbum.com)”. Drawn by AI from reference photos. ↗

WebP · 1070 px

Heard it but can't see it? Mingji identifies birds by sound and photo, on your phone.

In other languages