Large bodies of open water including coasts, rivers, and lakes with abundant fish and old-growth trees for nesting.
Mallard
Nearly any wetland habitat including lakes, rivers, ponds, marshes, estuaries, and urban park ponds.
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Song & Call Comparison
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Song & Call Comparison
ハクトウワシ
さえずり
High-pitched, chattering whistle: a rapid 'kleek-kik-ik-ik-ik'. Surprisingly weak and thin for such a large raptor. Also gives a lower 'kwit-kwit' call near the nest.
Mallard
さえずり
Female gives the classic 'quack-quack-quack', descending in pitch. Male utters soft nasal 'raeb-raeb'. Both give a high 'gag-gag-gag' when alarmed or taking flight.
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Geographic Range & Migration
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Geographic Range & Migration
ハクトウワシ
North America from Alaska and Canada through the contiguous United States to northern Mexico.
Mallard
Native across the Northern Hemisphere in North America, Europe, and Asia. Introduced to Australia and New Zealand.
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Conservation Status Comparison
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保全状況
Least Concern
ハクトウワシ
Least Concern
Mallard
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Identification Tips — How to Tell Them Apart
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How to Tell Them Apart
ハクトウワシ
羽毛
Adults have a dark brown body with a striking white head and tail. Juveniles are mottled brown and white, reaching full adult plumage at age five.
くちばし
Large, hooked, bright yellow bill
Mallard
羽毛
Breeding males have an iridescent green head, white neck ring, chestnut breast, and grey body. Females are mottled brown. Both sexes show a blue speculum bordered by white.
くちばし
Broad, flat bill — yellow-green in males, orange-brown in females
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About Each Bird (Descriptions)
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More Birds in Family
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