What kind of foods do blackbirds eat?

First monitor to see if the parents around. More than likely, the parents are doing their job. Also, feeding them human food or changing their eating habits would only shift them and get them confused. If mom and dad are absent for 1-2 days, then maybe you can consider giving a little smushed worm. The parents provide the important nutrients in the babies' digestable form by regurgitating the food. But i heir towards the side of caution, and let the babies be as the parents know best. Good luck!