

Pet budgie bleeding but unsure why
Had her for 8 years now (unknown exact age, assuming around 9ish) and never had a problem like this. Her partner died 2 years ago so she is very shy and timid (though she was never fully tamed to begin with) and she is very uncomfortable being held so i can’t fully inspect her without scaring her. She doesn’t appear to have lost a lot of blood as there is no blood in the cage. Her behaviour or eating habits haven’t changed at all since i first noticed it.
Anyone got any ideas as to what is happening?