pigeon identity

I found this youngster at the side of a road in a wooded area. She looked to be a couple weeks old and I have had her now for about 5 days. I initially thought she was in the roller/tumbler mix because she has feathers starting to sprout upwards on the back of her neck/head. However, after...

I keep garden doves, but have had a few white racers join my flock. Today I noticed another bird thats joined me, I havent a clue what it is so wondered if you could tell me what it is?. Thanks in advance. I have uploaded the pic on the main board but cant seem to put the link in this...