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46â€“63 cm (18-25Â¾ in) Robust bird
Immature Brown above and streaked below
In America, breeds from Alaska east through Mackenzie and northern Quebec to Newfoundland, and south to New Mexico, Great Lakes, and New England; also southward to northern Appalachians. Winters south to Virginia and Southwest.
There are 8 subspecies
Deciduous or coniferous woodland interspersed with open areas. Often over more open country in winter.
They often sit upright, with a hip-heavy outline. They fly at tree-top level with slow wing-beats interspersed with short straight glides.
Their diet consists mostly of small and medium sized birds and mammals, even capercaillie and hares.
They nest high in a tree, about 10-15 m up. They often re-use the nest.
Usually silent, sometimes lets out a loud kak-kak-kak-kak-kak when disturbed.
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