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Side-by-Side Comparison

คุณสมบัติ	Alder Flycatcher	American Dusky Flycatcher
ชื่อวิทยาศาสตร์	Empidonax alnorum	Empidonax oberholseri
อันดับ	Passeriformes	Passeriformes
วงศ์ตระกูล	Tyrannidae	Tyrannidae
สถานะการอนุรักษ์	Least Concern	Least Concern
ความยาว	—	—
กว้างปีก	13.7 cm (5.4 in)	13.3 cm (5.2 in)
น้ำหนัก	13.283333333333333 g (0.47 oz)	11.4 g (0.40 oz)
อาหาร	--	--
จำนวนไข่	3-4	2-4
Population Trend	—	—

{# ════════════════════════════════════════════════════════════════════════ Visual Size Comparison ════════════════════════════════════════════════════════════════════════ #} {# ════════════════════════════════════════════════════════════════════════ Habitat Comparison ════════════════════════════════════════════════════════════════════════ #}

Habitat Comparison

ถิ่นที่อยู่อาศัยร่วมกัน

ไม่มี

Alder Flycatcher only

🌾 Grassland

American Dusky Flycatcher only

🌲 Forest

{# ════════════════════════════════════════════════════════════════════════ Song & Call Comparison ════════════════════════════════════════════════════════════════════════ #} {# ════════════════════════════════════════════════════════════════════════ Geographic Range & Migration ════════════════════════════════════════════════════════════════════════ #} {# ════════════════════════════════════════════════════════════════════════ Conservation Status Comparison ════════════════════════════════════════════════════════════════════════ #}

สถานะการอนุรักษ์

Least Concern

Alder Flycatcher

Least Concern

American Dusky Flycatcher

{# ════════════════════════════════════════════════════════════════════════ Identification Tips — How to Tell Them Apart ════════════════════════════════════════════════════════════════════════ #} {# ════════════════════════════════════════════════════════════════════════ About Each Bird (Descriptions) ════════════════════════════════════════════════════════════════════════ #}

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.

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