C87 Male-female resolution

But Old Seven was troubled, because we really don't know how this bird distinguished itself to be a mother.

"Good boy Xiao Li, is there anything for this bird to feed?" Old Seven changed the parrot's size to make it turn its stomach upwards. After that, it turned around and around non-stop, probably searching for that thing.

"Damn, Brother Seven, this bird is a bird and not a mammal