Ancient Murrelet vs Thick-billed Murre
Synthliboramphus antiquus مقارنةً بـ Uria lomvia
Side-by-Side Comparison
| السمة | Ancient Murrelet | Thick-billed Murre |
|---|---|---|
| الاسم العلمي | Synthliboramphus antiquus | Uria lomvia |
| الرتبة | Charadriiformes | Charadriiformes |
| الفصيلة | Alcidae | Alcidae |
| حالة الحفاظ | Least Concern | Least Concern |
| الطول | — | — |
| طول الجناح | 27,1 cm (10.7 in) | 41,4 cm (16.3 in) |
| الوزن | 208,16666666666666 g (7.34 oz) | 945,75 g (33.36 oz) |
| النظام الغذائي | -- | -- |
| عدد البيض في الوضع | 2 | 1 |
| Population Trend | — | — |
Habitat Comparison
حالة الحفاظ
Least Concern
Ancient Murrelet
Least Concern
Thick-billed Murre
About These Birds
Ancient Murrelet
Ancient Murrelet, 24–27 cm, breeds in burrows on North Pacific islands from British Columbia to Japan. Black hood, grey back, white underparts with yellow bill. Nocturnal at colonies to avoid predators. Chicks lead-march to sea within days of hatching — abandoning the nest very early. Planktivore and piscivore.
Thick-billed Murre
Thick-billed Murre (Brünnich's Guillemot), 39–43 cm, breeds in enormous cliff colonies across the Arctic from Newfoundland to Siberia. Thicker, shorter bill with white gape line. Dives to 200+ m — deepest diver among alcids. Piscivore; takes capelin, cod. Vulnerable to climate change in the High Arctic.