Audouin's Gull vs Heermann's Gull
Larus audouinii เปรียบเทียบกับ Larus heermanni
Side-by-Side Comparison
| คุณสมบัติ | Audouin's Gull | Heermann's Gull |
|---|---|---|
| ชื่อวิทยาศาสตร์ | Larus audouinii | Larus heermanni |
| อันดับ | Charadriiformes | Charadriiformes |
| วงศ์ตระกูล | Laridae | Laridae |
| สถานะการอนุรักษ์ | Vulnerable | Near Threatened |
| ความยาว | — | — |
| กว้างปีก | 78.9 cm (31.1 in) | 67.2 cm (26.5 in) |
| น้ำหนัก | 610.5 g (21.53 oz) | 448.26666666666665 g (15.81 oz) |
| อาหาร | -- | -- |
| จำนวนไข่ | 1-4 | 1-2 |
| Population Trend | — | — |
Habitat Comparison
สถานะการอนุรักษ์
Vulnerable
Audouin's Gull
Near Threatened
Heermann's Gull
About These Birds
Audouin's Gull
Audouin's Gull, 44–48 cm, is a Near Threatened Mediterranean endemic, breeding mainly in the western basin. Coral-red bill with black and yellow band, grey mantle. Primarily piscivore; forages at sea at dusk for anchovies. Population recovered from 1,000 to over 20,000 pairs; now threatened by fishing bycatch.
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.