3 month old Cockatiel

Question
Hi, I have had my tiel for 2 weeks now. When I am home I play with her and let her run around the house, go my shoulder, I pet her...everything.  She is still being hand fed and I am trying to wean her.  The pet store told me to hand feed her and recently said to start weaning her. Anyway, I wanted to ask about the noises she makes. She makes this radio static sound when I am in the room mostly when she is hungry but sometimes after I feed her. Then, if I leave the room, she chirps really loud. When I come back, she goes back to that other sound. What does this mean?  She is always quick to jump on my finger and crawl to my shoulder.  Also, she is missing a little patch of feathers on her chest, its like it never grew in. Is that strange?  

Answer
Hi there. The pet store should not sell birds that aren't fully weaned. It sounds like she is just chirping for food or attention, its a shame that she was sold so young. I dont know how well she was fed in the petshop, but considering they sell birds that arent weaned perhaps they didnt feed her often enough or not a good enough quality of food and thats why her feathers never grew. Either that or shes a lot younger than they say and they just havent grew yet. Please anyone that reads this dont buy unweaned birds, theres a big risk when doing this and a lot of them just dont make it. I wish you luck with your bird