Iceland Gull vs Heermann's Gull
Larus glaucoides в сравнении с Larus heermanni
Side-by-Side Comparison
| Характеристика | Iceland Gull | Heermann's Gull |
|---|---|---|
| Научное название | Larus glaucoides | Larus heermanni |
| Отряд | Charadriiformes | Charadriiformes |
| Семейство | Laridae | Laridae |
| Охранный статус | Least Concern | Near Threatened |
| Длина | — | — |
| Размах крыльев | 79,2 cm (31.2 in) | 67,2 cm (26.5 in) |
| Масса | 911,5 g (32.15 oz) | 448,26666666666665 g (15.81 oz) |
| Питание | -- | -- |
| Размер кладки | 1-3 | 1-2 |
| Population Trend | — | — |
Habitat Comparison
Охранный статус
Least Concern
Iceland Gull
Near Threatened
Heermann's Gull
About These Birds
Iceland Gull
Iceland Gull, 50–64 cm, breeds in Greenland and winters on both sides of the North Atlantic to Great Lakes. White wing tips (like Glaucous Gull but considerably smaller), pink orbital ring. Omnivore; scavenges at harbours and landfills in winter. Two subspecies often treated as separate species.
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.