I have a 10-month old cockatiel who's going through his first molt. He's always been meticulous about preening. Last week I had to leave town and before dropping him off at the bird kennel I took a look at his flight feathers to see if they needed to be clipped. What worried me is that his primary coverts looked almost frayed, as if they were being preened too much. When I picked him up today from the bird kennel he had a broken blood feather under his wing. This could have been from something stressing him while being boarded with other birds (he gets the flappies when he's stressed) or I'm afraid he may have plucked it out. He's been tired all day since I picked him up and I want to give him some time to rest, but he hasn't whistled a single tune and he's usually very vocal. And when he does preen his wings, especially the side where the broken feather was, he makes a little squeaky sound. How much of the frayed feather issue could be attributed to molting, and how long should I give him to recover from the shock of being boarded before I assume there's something else going on? Are there any illnesses in particular I should be on the lookout for since he was boarded?