I got my order of 4 day old chicks today . 3 of 4 are awesome, but 1 is really lethargic and is not pecking around or drinking. Just sleeping. Seems to be going downhill. Do I isolate it? Don't know if it is traumatized by shipping or just really sick. On a side note, there is something sticking out of her vent. Not pasting. It looks like a cross between a piece of rice and small piece of dried white grass material. Not pine shavings I have down for them.