Chatham Islands Shag vs Double-crested Cormorant
Leucocarbo onslowi so với Nannopterum auritum
Side-by-Side Comparison
| Thuộc Tính | Chatham Islands Shag | Double-crested Cormorant |
|---|---|---|
| Tên Khoa Học | Leucocarbo onslowi | Nannopterum auritum |
| Bộ | Suliformes | Suliformes |
| Họ | Phalacrocoracidae | Phalacrocoracidae |
| Tình Trạng Bảo Tồn | Critically Endangered | Least Concern |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | 51,8 cm (20.4 in) | — |
| Khối Lượng | 2095,0 g (73.90 oz) | 1936,0 g (68.29 oz) |
| Chế Độ Ăn | -- | -- |
| Số Trứng | 3 | 3-4 |
| Population Trend | — | — |
Habitat Comparison
Môi Trường Sống Chung
Chatham Islands Shag only
Không
Double-crested Cormorant only
Tình Trạng Bảo Tồn
Critically Endangered
Chatham Islands Shag
Least Concern
Double-crested Cormorant
About These Birds
Chatham Islands Shag
63 cm. Black and white; orange-red caruncles at bill base. Endemic to Chatham Islands, New Zealand. Critically Endangered; total population fewer than 1,000 birds. Restricted to a few Chatham Islands colonies; feeds on fish and invertebrates in surrounding coastal waters.
Double-crested Cormorant
70–90 cm, wingspan 114–123 cm. Dark with two small orange ear tufts in breeding; orange-yellow facial skin. Widespread across North America and Central America. Highly adaptable; colonial nester. Controversial where it competes with commercial fisheries; feeds almost exclusively on fish.