House Finch males try to attract a female mate by performing displays,such as the "butterfly flight", singing, and courtship feeding
These talkative little 6 inch birds get their name from their habit of hanging around human houses. Their cheery warble and variety of chirps are a constant around the feeders and you may find their nests in your hanging baskets, wreaths, or nearby pine trees.
Adult males are rosy red around the face and upper breast, with streaky brown back, belly and tail. Adult females aren’t red; they are plain grayish-brown with thick, blurry streaks and an indistinctly marked face. The amount of red the male finch has can vary depending on the amount of carotenoid pigments he eats during his fall molt. Many brilliant red, orange, and yellow color displays of birds are the result of carotenoid pigments deposited in the feathers.
House Finches may be confused with Purple Finches. Purple Finches have a more reddish color on their upper parts and are not streaked on their abdomens.
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House Finch feeding his baby http://goo.gl/g4svn
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