Thank you all so much for the replies, sorry it's taken so long to respond back.
My mom has a ton of pigeons, even strays that come by everyday. I have been helping now with them as my mom needs care now. She still does her normal routine, which is just flying around the surrounding area.
I don't race them, would be cool to try though. My mom wants to get rid of some because she has quite a bit I just wanted to see if I can help out before she does, but its good to know they are hardy birds.
We both love birds, I also have two female mallards which I give the nutrients to so I was just wondering. One set of pigeons had there normal two babies and I don't know why but one of the others had pecked it to death. Could this be because there are too many or not enough food or nutrients.. Idk I want to just help as much as I can.