2 week old canary will not raise it's head up

by Pat
(Palmdale, CA)

Why won't my 2 week old canary raise it's head up. It looks fat, but sticks it's rear end up in the air. I have a 2 week old canary, still in the nest. This is a first time Momma. It sticks it's head down and it's rear end up. I have not touched it as I know I'm not supposed to but I have chickens and I know the rear ends can become impacted. Should I clean this baby? I will have to pick it up out of the nest.
thank you