Parent Birds

I was outside one day when I heard strange sounds from the street. I ducked under the evergreens that grow in front of the house, quietly, to see what made the noise. It was four large black birds (crows) on the street, making human-like sounds. One of them was picking up something looking like French fries and feeding them to the others. I surmised that the one doing the feeding was the parent, although they were all approximately the same size. The thing that made this so memorable was the cooperation among the birds and the human like sounds they were making. This reminded me of two robins I had seen earlier. They looked to be the same size as eachother, like the crows, but one of them was offering the other one an earth worm.