I recently (few days ago) set up 2 pair of English Budgies in separate breeding cages with nest boxes in a newly created breeding room. In the same room I initially allowed my very tame Cockatiel and his small yellow parakeet companion (6 mos old) free fly during the day in the same room. Yesterday, to my surprise, the young yellow parakeet was exchanging & regurgitating with my male blue English Budgie through cage bars. First of all, I think the yellow parakeet is male, sings like one & copies sound easily, like one, in fact sounds like a Cockatiel most days, lol. Now I’m wondering if he is a female. He/she is distracting the male Budgie from it’s chosen mate, for one and I am surprised because now I’m unsure of the sex. I removed him from bird room, anyway & he seems fine, for now. What do you think this parakeet is Male or female? Or is he/she too young to tell on a yellow bird?