Yesterday morning, following the sounds, "peep peep", I found a baby robin up in a tree not far from the nest. In order to see if this was the crippled baby I had to watch the behavior. Would it be possible to see the damaged foot? Would the baby have proper balance? Until yesterday morning I had only seen baby 3 on the ground, unable to get lift-off. This baby was way up a tree. It had to have gotten itself up there.
First clue: one wing on right side hanging down. Helps with balance.
Second clue: Cripppled foot. This is definitely little Amahl. He managed to fly up onto this wide branch. What a determined little bird.
The nails on the crippled foot are not being worn down. I don't know if this will be useful or a hinderance.