  A cardinal and other birds eat seeds from a birdfeeder in the winter. Thinkstock Footage
 Medium shot of a birdfeeder as birds land, eat and fly away. Thinkstock Footage
 Medium shot of birds at a birdfeeder; two cardinals fly up to eat. Thinkstock Footage
 Wide shot of birds flying, landing and eating at a birdfeeder on a ... Thinkstock Footage
 A cardinal sits on a bird feeder while other birds join it for seeds. Thinkstock Footage
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