I have four 1 week old ducklings and this morning I noticed two were panting. The temp in the brooder is about 90 degrees, I lowered it to 85 degrees. Noticed one of the other ducklings was whistling. Totally my fault. I'd been busy with a birthday party and didn't give them something deep enough to dunk their heads in. So this morning I let them bathe in the bathtub. They dunked their heads a lot and scratched at their noses. A little sneezing too. After they had dried and gone back in the brooder, the two are panting again. Is there anything else I can do? They seem fine otherwise....eating a drinking and preening.