I rescued alot of doves there beautiful birds lol,

Just keep it warm, feed it dove seeds or some regulare budgie mix for now,

Keep water near this bird at all times and watch the water stays clean.

It was probably attacked from a hawk if the tail feathers are scruffy, I had the same thing happen to a homming pigeon, her back tail feathers where gone and she was not flying but her wings where fine, she just had a small twist her in back probably but after a few days she was fine and flew off.

Watch this dove and do not relase it till you know for sure it can fly.

Wish I was closer otherwise I could take a look at her/him lol, but if you find you won't have time to look after the bird you can give it to a wild life rescue or bring it to me lol.

Keep a warm watter bottle near the bird, also feed it a tiny choped up piece of garlic to kill any bad bacteria inside the bird, trust me it's works magic for pigeons and doves lol, a hampster cage is fine but watch it does not freak out otherwise it can break both wings or kill it's self against a cage.

Actualy to be safe I would keep it in a box.

Now I need to look up west nile to see how its transmitted
Hahaha you don't have to worry about that lol, I have kissed so many wild birds and never got sick in my hole life, of course wash your hands all the time but trust me your not going to get sick from this bird.