Heermann's Gull vs Arctic Herring Gull
Larus heermanni ile kıyaslandığında Larus smithsonianus
Side-by-Side Comparison
| Özellik | Heermann's Gull | Arctic Herring Gull |
|---|---|---|
| Bilimsel Ad | Larus heermanni | Larus smithsonianus |
| Takım | Charadriiformes | Charadriiformes |
| Familya | Laridae | Laridae |
| Koruma Durumu | Near Threatened | Least Concern |
| Uzunluk | — | — |
| Kanat Açıklığı | 67,2 cm (26.5 in) | 85,9 cm (33.8 in) |
| Ağırlık | 448,26666666666665 g (15.81 oz) | 1108,0 g (39.08 oz) |
| Beslenme | -- | -- |
| Kuluçka Büyüklüğü | 1-2 | 2-3 |
| Population Trend | — | — |
Habitat Comparison
Ortak Yaşam Alanları
Heermann's Gull only
Hiçbiri
Arctic Herring Gull only
Koruma Durumu
Near Threatened
Heermann's Gull
Least Concern
Arctic Herring Gull
About These Birds
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.
Arctic Herring Gull
Arctic Herring Gull, 55–66 cm, breeds across Arctic North America and winters on all coasts of the US. Formerly lumped with European Herring Gull; darker-eyed on average, slightly more northerly range. Omnivore and scavenger; abundant at fishing ports, dumps, and beaches in winter.