I returned home this morning (around 10:30-ish?) to find that the bird cover was still on the cage (everyone was asleep). I took it off and took my cockatiel out to play. However, he didn't seem interested in anything at all. His crest was all the way up and his droppings were sometimes watery, sometimes not, and so I thought maybe it had something to do with the stack of newspapers that was on the desk. I put away the stack and got him some raw corn to nibble on. It took a couple of minutes for him to calm down, but eventually he was walking all over and talking like he usually does. Since it's been way too long since his last bath, I took both him and our budgie to the shower.(Put the water on the lowest pressure setting.) He didn't respond to the water at all, after his initial attempts to fly out of the tub. I readjusted the shower head and he just sat there under the water until I moved it away. I noticed a feather from his wing fell off into the tub, and when I looked at his wing, there was a pink patch on his wing. Now that he's relatively dried off, the patch is no longer visible, but I'm still concerned, given the odd behavior this morning. Should I be worried, or is it normal?