he sits like this (is slightly puffed up)
my lovebird is only about 5-7 months old. he walks around slightly puffed up. our house is not heated and we live in australia (temperature is about 17 degrees Celsius). sometimes when he breathes, his tail bobs only a little bit (a fraction of when he chatters or sings). he eats and plays normally when he comes out of his cage and he flies to me when he is asked. he seems to be alert when he is inside or outside his cage, but in about 3-4o'clock in the after noon, he seems to just sit and almost falls asleep, he even grinds his teeth to show he's comfy.
please help me, could he be sick?