I got my first cockatiel 2 weeks ago and she was about 6-8 weeks old when I first got her, hand raised. When I went and collected her she was the most placid of all the birds the breeder showed me (he'd only had her for a couple days). She sat on my finger calmly for the entire trip home. The second I brought her home however - and from that moment onward - she has been so aggressive! My fingers are covered in nasty and DEEP bites and I can't even walk past her cage without her opening her beak and flattening her crest and/or hissing at me! I leave her cage door open all of the time when I'm around, and sometimes she comes out to have a look around and wander on the floor (her wings are clipped) but the second I give her attention the hostility returns. Usually for about 2 hours a day she is climbing about her cage, but for the rest of it she's statue-like on her perch.
I can't imagine the breeder would like to buy her back, and I don't really want to give up, but her aggressiveness is getting ridiculous. I don't think she's ever approached my hand and if she steps up she flies off almost instantly. If I put my hand near her she knows immediately what I'm going to do and she hops away without even considering stepping up. I don't want to neglect her but I have no idea how to treat her... I give her a lot of love by talking to her a lot and I leave her be when she has had enough - perhaps I have lost her trust in some way? Upon reading hundreds of posts by others who have aggressive tiels I've been hoping, but there has been no improvement whatsoever! Any advice would be dearly appreciated.
From a sad cockatiel owner