Cockatiel agressive behavior
I have a cockatiel. She was extremely sweet for the first 4 weeks i had her, even after a 74 hour car ride. This is the 6th week i have had her. She hasn't been as sweet the 5th week, i recently tried to hand feed her and when i brought my hand slowly towards her with tons of seed she hissed and bit my hand. I was able to feed her the first couple of weeks even when she wasnt hand tamed. Why is she so moody?