True or False? All North American wood-warblers change their appearance entirely from spring (breeding) to fall (non-breeding) plumage.
Answer: False. Only about 10 do. The remaining 43 change not at all or very little from breeding to non-breeding plumage.
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Helping Backyard Birds in Winter
What are the best ways to help birds in bad weather? What are the best foods for winter feeding? When bad weather comes, you'll be ready to provide your backyard birds with just the kind of helpful hospitality they need.