Black-fronted Tern vs Saunders's Gull
Chlidonias albostriatus مقارنةً بـ Saundersilarus saundersi
Side-by-Side Comparison
| السمة | Black-fronted Tern | Saunders's Gull |
|---|---|---|
| الاسم العلمي | Chlidonias albostriatus | Saundersilarus saundersi |
| الرتبة | Charadriiformes | Charadriiformes |
| الفصيلة | Laridae | Laridae |
| حالة الحفاظ | Endangered | Vulnerable |
| الطول | — | — |
| طول الجناح | 47,9 cm (18.9 in) | 54,8 cm (21.6 in) |
| الوزن | 93,0 g (3.28 oz) | 195,0 g (6.88 oz) |
| النظام الغذائي | -- | -- |
| عدد البيض في الوضع | 2 | 1-6 |
| Population Trend | — | — |
Habitat Comparison
حالة الحفاظ
Endangered
Black-fronted Tern
Vulnerable
Saunders's Gull
About These Birds
Black-fronted Tern
Black-fronted Tern, 27–30 cm, is Endemic and Near Threatened, breeding on South Island New Zealand river shingle beds. Orange bill, blue-grey body, black cap; juveniles brownish. Piscivore and insectivore; hovers and dips over braided rivers. Winters on nearby North Island and Australian coasts.
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.