Heermann's Gull vs Dolphin Gull
Larus heermanni verglichen mit Larus scoresbii
Side-by-Side Comparison
| Merkmal | Heermann's Gull | Dolphin Gull |
|---|---|---|
| Wissenschaftlicher Name | Larus heermanni | Larus scoresbii |
| Ordnung | Charadriiformes | Charadriiformes |
| Familie | Laridae | Laridae |
| Erhaltungsstatus | Near Threatened | Least Concern |
| Länge | — | — |
| Flügelspannweite | 67,2 cm (26.5 in) | 64,6 cm (25.4 in) |
| Gewicht | 448,26666666666665 g (15.81 oz) | 519,0 g (18.31 oz) |
| Ernährung | -- | -- |
| Gelegegröße | 1-2 | 2-3 |
| Population Trend | — | — |
Habitat Comparison
Erhaltungsstatus
Near Threatened
Heermann's Gull
Least Concern
Dolphin 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.
Dolphin Gull
Dolphin Gull, 42–45 cm, is restricted to the coasts of southern South America, the Falkland Islands, and Tierra del Fuego. Adults have a blood-red bill and legs; plumage varies from grey to brownish with age. Scavenges on marine mammal placentas, carrion, and penguin colonies. Resident.