"Profile of a tired parrot"

I like to take pictures at the zoos. It amazes me the diversity of colours and expressions you can see there. However, sometimes it's interesting to observe how tired and stressed an animal can get after months (years maybe) in a cage. That's the moment I tried to transmit with this picture.

This is not intended to be a prize-winning picture (far from that - this parrot is quite ugly), but an observation of how difficult it must be to be in a cage, for ages, without seeing the outside world.