Feed the bird wet cat food, and sugar water. Then once it gets its strength back, continue with the cat food, and switch over to water. If the feathers are downy, you'll need a heat lamp. If the feathers are full, you just need a nice box with some hay and a rag. And if it's panicking, put a lid over the bird. Darkness calms them down. And if you have to pick it up, grab arounf the back of it's wings, going down to the stomach. If you need to check the wings, ever so gently, flip the bird onto its back, and dor the love of God cover its head so it won't panic as much. Then gently stretch the wings out and check to see if anything is wrong with it. If the bird has any noticible broken bones, let me know. I can walk you through on how to fix it. I did this for hawks and eagles back in Alaska. So I should know what to do 🙃😉