Do i have a female or a male alexandrine parrot? the one in the left side is the one i have the question on.

[Alextheparrot]

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[Rozalka]

they're too young to say this by visual look

 

[Alextheparrot]

they're too young to say this by visual look

I have to mention that in the other picture it s my baby parrot with his sibling, they are so so different in growth, and that s why I m asking because I heard that it can be possible to be a female if the growth is slower..