Alder Flycatcher vs American Dusky Flycatcher
Empidonax alnorum so với Empidonax oberholseri
Side-by-Side Comparison
| Thuộc Tính | Alder Flycatcher | American Dusky Flycatcher |
|---|---|---|
| Tên Khoa Học | Empidonax alnorum | Empidonax oberholseri |
| Bộ | Passeriformes | Passeriformes |
| Họ | Tyrannidae | Tyrannidae |
| Tình Trạng Bảo Tồn | Least Concern | Least Concern |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | 13,7 cm (5.4 in) | 13,3 cm (5.2 in) |
| Khối Lượng | 13,283333333333333 g (0.47 oz) | 11,4 g (0.40 oz) |
| Chế Độ Ăn | -- | -- |
| Số Trứng | 3-4 | 2-4 |
| Population Trend | — | — |
Habitat Comparison
Môi Trường Sống Chung
Không
Alder Flycatcher only
American Dusky Flycatcher only
Tình Trạng Bảo Tồn
Least Concern
Alder Flycatcher
Least Concern
American Dusky Flycatcher
About These Birds
Alder Flycatcher
The Alder Flycatcher is a small North American flycatcher weighing about 13 g with a wingspan near 14 cm. It breeds in alder thickets and wet scrub across Canada and the northern United States, identified primarily by its distinctive fee-BEE-o song rather than its plain olive-grey plumage.
American Dusky Flycatcher
The American Dusky Flycatcher is a small empidonax weighing about 11 g with a 13.3 cm wingspan, breeding in shrubby mountain slopes of western North America. It captures insects on short aerial sallies and is best identified by its distinctive two-note call.