Band-rumped Storm-petrel vs Tristram's Storm-petrel
Hydrobates castro مقارنةً بـ Hydrobates tristrami
Side-by-Side Comparison
| السمة | Band-rumped Storm-petrel | Tristram's Storm-petrel |
|---|---|---|
| الاسم العلمي | Hydrobates castro | Hydrobates tristrami |
| الرتبة | Procellariiformes | Procellariiformes |
| الفصيلة | Hydrobatidae | Hydrobatidae |
| حالة الحفاظ | Least Concern | Least Concern |
| الطول | — | — |
| طول الجناح | 30,1 cm (11.9 in) | 35,5 cm (14.0 in) |
| الوزن | 49,25 g (1.74 oz) | 89,0 g (3.14 oz) |
| النظام الغذائي | -- | -- |
| عدد البيض في الوضع | 1 | 1 |
| Population Trend | — | — |
حالة الحفاظ
Least Concern
Band-rumped Storm-petrel
Least Concern
Tristram's Storm-petrel
About These Birds
Band-rumped Storm-petrel
Band-rumped Storm-petrel, 19–21 cm, breeds on Atlantic and Pacific volcanic islands including the Azores, Canaries, and Galápagos. Sooty brown with a white rump band; similar to Leach's but straighter wingtips and steadier flight. Multiple cryptic species may be involved. Planktivore; widespread pelagic.
Tristram's Storm-petrel
Tristram's Storm-petrel, 24–25 cm, is one of the largest storm-petrels, breeding on small Hawaiian and Ogasawara Islands in the North Pacific. All dark; broad wings, moderate tail fork. Nocturnal at colonies in winter (October–April). Planktivore; poorly known at sea; winters south into tropical Pacific.