Disabled pigeon

[Shirley]

Hi everyone,
I work at an emergency shelter in Halifax, Nova Scotia, Canada. I often feed birds outside the shelter in the winter because I know it's hard for them to find food. This week a new fella - well I think he's a fella - not sure how you tell stuff like that with pigeons - has been coming every day for food. One of his feet is badly mangled and limp. He can't use it at all. He hops around on one foot and sometimes falls down - rests a bit and then hops some more. He also seems to fly very low. Would appreciate any advice you may have for how I might be able to help my new found feathered friend. As of yet he is not approachable. So I haven't been able to catch him. I'm hoping he'll learn to trust me more.
Shirley