Yellow Crested Cockatoos

[Perry100]

G'day, I have two Yellow Crested Cockatoos in my 10'X10' Avery. They both get on well together. I would like to know if I would be able to put another bird species in with them? I tried a Cockatiel but they attact him.

 

[Lokasia]

It would need to be another species of similar size at least

 

[chris-md]

Not in that small an aviary, no.