You can crop-feed a baby dove using a formula that has been mixed to the right consistency. Usually, baby doves feed on regurgitated milk from their mothers until they are old enough to eat on their own.
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Doves, members of the pigeon family are strict seed-eaters. Baby doves cannot eat hard food as it may choke them. They need powdered baby parrot mix, which you must mix with warm water and fed them by syringe or spoon.