Olrog's Gull vs Heermann's Gull
Larus atlanticus เปรียบเทียบกับ Larus heermanni
Side-by-Side Comparison
| คุณสมบัติ | Olrog's Gull | Heermann's Gull |
|---|---|---|
| ชื่อวิทยาศาสตร์ | Larus atlanticus | Larus heermanni |
| อันดับ | Charadriiformes | Charadriiformes |
| วงศ์ตระกูล | Laridae | Laridae |
| สถานะการอนุรักษ์ | Near Threatened | Near Threatened |
| ความยาว | — | — |
| กว้างปีก | 78.3 cm (30.8 in) | 67.2 cm (26.5 in) |
| น้ำหนัก | 850.0 g (29.98 oz) | 448.26666666666665 g (15.81 oz) |
| อาหาร | -- | -- |
| จำนวนไข่ | -- | 1-2 |
| Population Trend | — | — |
Habitat Comparison
สถานะการอนุรักษ์
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.