parrots on each others back...
Ok... I have four parakeets, i got two first then bought the other one. they all get along well. today i got the last one but i am not sure if it's a male or female. one of the birds keep jumping in it's back but it fight back.
i don't know what to do or what is happening. help me! really i'm not too sure about the sex of any of the birds i keep looking at their cere the one that's on the back cere's light blue. is it fully mature?