by Eric&Rebecca » Sat Jul 20, 2013 11:14 am
Hi,
Well first things first I would get an AVIAN vet to take a look to rule out anything unusual and also take a blood test to rule out vitamin or nutritional issues.
Cockatiels, at least in my experience, do well on fresh veggies, fruit, pellets (TOPS), seeds (no sunflower with a mixture of dried fruits) and rice, pasta, sometimes a little eggfood and pulses (and sprouting mix)
Tell us more about their diet and daily routine:
Do you smoke at all?
Is the bird old or young? (not all cockatiels are the same, George has a yellow crest but a grey top, Edmund is a very pale grey with yellow highlights so nothing is exactly NORMAL, there's all different variations)- if the bird is young and is going through the first molt it's probably just a variation.
First and foremost though, trip to the vets.