In general, mixing different species of birds in one aviary is not a good idea. Different species have different nutritional, habitat and spatial requirements.
Typically a mixed aviary is huge in foot print. Most are either all males or all females. The males, in general, will get along fine as long as no hens can be seen, heard or smelled by the males. Females, in general, get along fine, other than an occasional spat, they do well together.
I have run both type aviaries, it's not a 'beginers' aviary.