Bonaparte's Gull vs Saunders's Gull
Larus philadelphia مقارنةً بـ Saundersilarus saundersi
Side-by-Side Comparison
| السمة | Bonaparte's Gull | Saunders's Gull |
|---|---|---|
| الاسم العلمي | Larus philadelphia | Saundersilarus saundersi |
| الرتبة | Charadriiformes | Charadriiformes |
| الفصيلة | Laridae | Laridae |
| حالة الحفاظ | Least Concern | Vulnerable |
| الطول | — | — |
| طول الجناح | 51,9 cm (20.4 in) | 54,8 cm (21.6 in) |
| الوزن | 204,575 g (7.22 oz) | 195,0 g (6.88 oz) |
| النظام الغذائي | -- | -- |
| عدد البيض في الوضع | 1-3 | 1-6 |
| Population Trend | — | — |
Habitat Comparison
حالة الحفاظ
Least Concern
Bonaparte's Gull
Vulnerable
Saunders's Gull
About These Birds
Bonaparte's Gull
Bonaparte's Gull, 28–30 cm, is North America's smallest Larus gull, breeding in boreal forests near lakes and wintering on both coasts. Breeding adult has a black hood; underwing shows white triangular flash. Planktivore and piscivore; buoyant, tern-like flight. Migratory; forms large winter flocks.
Saunders's Gull
Saunders's Gull, 29–32 cm, is a Vulnerable gull breeding in coastal saltmarshes of China and Korea, wintering along East Asian coasts to Vietnam. Black hood in breeding plumage, white wing-tip mirrors. Feeds on crustaceans and invertebrates in tidal mudflats. Threatened by reclamation of Yellow Sea tidal flats.