I think some birds just have a preference for two feet. My female would do 1 foot sometimes, but not nearly as often as my male. I think it's more of an issue when it's a change from the norm, like you mentioned.Thanks for the input! I was just curious because I hear a lot of people say that budgies resting on two feet is a sign of illness, but maybe that's just if the bird is known for resting on one foot normally.