Olrog's Gull vs Heermann's Gull
Larus atlanticus ile kıyaslandığında Larus heermanni
Side-by-Side Comparison
| Özellik | Olrog's Gull | Heermann's Gull |
|---|---|---|
| Bilimsel Ad | Larus atlanticus | Larus heermanni |
| Takım | Charadriiformes | Charadriiformes |
| Familya | Laridae | Laridae |
| Koruma Durumu | Near Threatened | Near Threatened |
| Uzunluk | — | — |
| Kanat Açıklığı | 78,3 cm (30.8 in) | 67,2 cm (26.5 in) |
| Ağırlık | 850,0 g (29.98 oz) | 448,26666666666665 g (15.81 oz) |
| Beslenme | -- | -- |
| Kuluçka Büyüklüğü | -- | 1-2 |
| Population Trend | — | — |
Habitat Comparison
Koruma Durumu
Near Threatened
Olrog's Gull
Near Threatened
Heermann's Gull
About These Birds
Olrog's Gull
Olrog's Gull, 55–58 cm, is an Endangered South American gull breeding in small colonies in Buenos Aires Province, Argentina. Very similar to Belcher's Gull. Piscivore; entirely dependent on mudflats and estuaries of the Buenos Aires coast. Threatened by industrial development of breeding and foraging sites.
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.