Injured pigion

by Ashley
(Canada)

I found a healthy looking pigion outside flapping around in the snow. I took it home and there are no broken bones or wings that i can see, it walks fine and eats. The only problem is that it wont fly and it turns it head in an odd motion when it gets scared and flopps around. whats wrong with it?

Im doing my best to care for it, I have a soft bed with a bowl of water and food, and a warm heating system, Im just not sure what kind of problem the bird has.