Black-tailed Gull vs Fairy Tern
Larus crassirostris مقارنةً بـ Sternula nereis
Side-by-Side Comparison
| السمة | Black-tailed Gull | Fairy Tern |
|---|---|---|
| الاسم العلمي | Larus crassirostris | Sternula nereis |
| الرتبة | Charadriiformes | Charadriiformes |
| الفصيلة | Laridae | Laridae |
| حالة الحفاظ | Least Concern | Vulnerable |
| الطول | — | — |
| طول الجناح | 72,8 cm (28.7 in) | 35,6 cm (14.0 in) |
| الوزن | 675,0 g (23.81 oz) | 68,5 g (2.42 oz) |
| النظام الغذائي | -- | -- |
| عدد البيض في الوضع | 2-3 | 1-2 |
| Population Trend | — | — |
Habitat Comparison
حالة الحفاظ
Least Concern
Black-tailed Gull
Vulnerable
Fairy Tern
About These Birds
Black-tailed Gull
Black-tailed Gull, 44–48 cm, is common on East Asian coasts from Russia to China, Japan, and Korea. Grey mantle, white body, yellow bill with red spot and black subterminal band, yellow legs. Omnivore; very vocal, known as the 'cat gull' for its mewing calls. Migratory; winters south to Vietnam.
Fairy Tern
Fairy Tern, 22–25 cm, breeds in southern Australia, New Zealand, and New Caledonia on sandy beaches. White and pale grey with an orange-yellow bill; delicate and buoyant in flight. Piscivore; hovers and plunge-dives in shallow coastal and estuarine waters. Vulnerable due to beach disturbance.