The Bird Heart: A Look At The Circulatory System &
2020-8-5 · Bird enthusiasts know sunflower seeds are popular with a variety of backyard visitors. Birds that have cone-shaped beaks have the ability to trap a seed, thanks to a special groove in their beaks, and crack it open. Using their tongues, these birds then nimbly separate the seed from the shell. Grow sunflowers to attract more seed-eating birds.
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