Quite recently I have noticed that Charlie would sit on a perch and would start chewing on the bars of the cage, then Oskie begin to display the same behaviour. I thought this was because they had nothing to chew on in their enclosure so I gave them some safe branches with leaves and different...

I have organized a vet visit but wont be able to go there til thursday.. and im worried about his/her behavior. S/he is a LutinoCockatiel so im not sure of his (i just assume hes a boy) sex - i was told that they are hard to tell the sex of lutinos! he is a perfectly happy cockatiel, eats a lot...