Have had Gouldians and Javas in the same avairy in the past. But this season I had them in different avairys and both did better. No idea if it was relavant or not. Wear alsorts into the avairy. Light, dark, plain, patterned. Have not noticed any of my birds freaking when I enter after they have settled in. Maybe I radiate peace and tranquillity.

I do try not to go in and out unnecessarilly.
LML