Iceland Gull vs Heermann's Gull
Larus glaucoides verglichen mit Larus heermanni
Side-by-Side Comparison
| Merkmal | Iceland Gull | Heermann's Gull |
|---|---|---|
| Wissenschaftlicher Name | Larus glaucoides | Larus heermanni |
| Ordnung | Charadriiformes | Charadriiformes |
| Familie | Laridae | Laridae |
| Erhaltungsstatus | Least Concern | Near Threatened |
| Länge | — | — |
| Flügelspannweite | 79,2 cm (31.2 in) | 67,2 cm (26.5 in) |
| Gewicht | 911,5 g (32.15 oz) | 448,26666666666665 g (15.81 oz) |
| Ernährung | -- | -- |
| Gelegegröße | 1-3 | 1-2 |
| Population Trend | — | — |
Habitat Comparison
Erhaltungsstatus
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.