Maybe she is moulting? Budgie molting is the timely replacement of old feathers on the body, tail, and wings with new ones and it is a very common phenomenon in most parrot species Read the article here if you think it is more than season moult. You should talk to your veterinarian.
You should take your Budgie to the vet. Sometimes budgies sitting puffed up does not mean serious like from this article An avian vet might be best to consult.
Why veggies? Better health, longer life, variety in the diet, etc. Some Random Ideas to get your Bird to eat veggies or fruits Watch here. Some reported that this kind of music calms their birds, give it a try.
Taming a Budgie bird or any kind of pet really depends on your patients and their will to be tamed. Some pets really don’t want to be tamed and have some kind of trauma from the past. For those kinds of pets, you need a lot, a lot of time to tame and gain their trust. There is an article about taming a bird here or even a Youtube playlist of videos on how to tame a budgie bird here.
Maybe you are having female Budgie? They love biting everything just for fun 😊 If that gets a real problem I made an article about that kind of problem here It should help
Place his cage or aviary where there are no cold drafts, direct sunlight, or fumes from the kitchen. If you are assuming your budgie is ill, you should take him to the vet.
