Short-billed Gull vs Heermann's Gull
Larus brachyrhynchus в сравнении с Larus heermanni
Side-by-Side Comparison
| Характеристика | Short-billed Gull | Heermann's Gull |
|---|---|---|
| Научное название | Larus brachyrhynchus | Larus heermanni |
| Отряд | Charadriiformes | Charadriiformes |
| Семейство | Laridae | Laridae |
| Охранный статус | Not Evaluated | Near Threatened |
| Длина | — | — |
| Размах крыльев | — | 67,2 cm (26.5 in) |
| Масса | 395,0 g (13.93 oz) | 448,26666666666665 g (15.81 oz) |
| Питание | -- | -- |
| Размер кладки | 1-5 | 1-2 |
| Population Trend | — | — |
Habitat Comparison
Общие среды обитания
Short-billed Gull only
Heermann's Gull only
Нет
Охранный статус
Not Evaluated
Short-billed Gull
Near Threatened
Heermann's Gull
About These Birds
Short-billed Gull
Short-billed Gull, 40–45 cm, breeds in interior Alaska and western Canada, wintering on the Pacific coast. Recently split from Common Gull; slightly smaller with a shorter bill and more rounded head. Omnivore; often inland on grasslands and agricultural fields during migration. Migratory.
Heermann's Gull
Heermann's Gull, 46–51 cm, is distinctive — dark grey body, white head (breeding), red bill. Breeds almost entirely on Isla Rasa in the Gulf of California, then disperses north along the Pacific coast to British Columbia. Kleptoparasite; steals fish from Brown Pelicans. Near Threatened; range highly restricted.