Birds › Gulls, Terns, and Skimmers
Black-tailed Gull
Larus crassirostris
27 photos
Study shows up to four per card, from different observers, so you learn the species rather than one picture. Heart the good ones and swap any you do not like.
Photos you add are credited to you, and you keep the copyright.
Easily confused with
Laughing GullLeucophaeus atricilla
Ring-billed GullLarus delawarensis
Common GullLarus canus
Slaty-backed GullLarus schistisagus
Western GullLarus occidentalis
Black-headed GullChroicocephalus ridibundus
Herring Gull (Mongolian)Larus mongolicus
Vega GullLarus vegae
Study checks a spoken answer against these, and tells you which one you named.
Where it is recorded
| United States | 2,017 |
|---|---|
| South Korea | 929 |
| Japan | 883 |
| Canada | 867 |
| Ontario | 634 |
| Russia | 538 |
| Primorsky Krai | 428 |
| China | 422 |
| Washington | 301 |
| California | 247 |
Counts show where people looked, not only where it lives.
Traits
Group and habits
- Ground nestingListed by a harvested source as nesting on the ground.BIRDBASE avian traits database
- Fish eaterListed by a harvested source as primarily eating fish.BIRDBASE avian traits database
Classification
| Kingdom | Animals · Animalia |
|---|---|
| Phylum | Chordates · Chordata |
| Class | Birds · Aves |
| Order | Shorebirds and Allies · Charadriiformes |
| Family | Gulls, Terns, and Skimmers · Laridae |
| Genus | Large White-headed Gulls · Larus |
Study it in a deck
Or build your own from the species near you.
Sources
- Names, taxonomy and observation counts: www.inaturalist.org
- Photos and recordings: the creator and source are on each one.
- Traits: BIRDBASE avian traits database (CC BY 4.0)
- How much to rely on each source
Remember the name next time.
Practise Black-tailed Gull with real photos from different observers. Say the name out loud, and it comes back just before you would forget it.