Checked his crop and that's OK. Did give him some scrambled egg which he ate and seemed to enjoy.
I've been feeding 16% protein layer feed for the hens. Would the lower protein level eventually weaken him. My chickens do free range also but in the winter this is minimal.
I have one rooster and 10 hens since last spring. Friday I noticed the rooster wasn't crowing and seemed light when i picked him up. Yesterday he stopped following flock. I isolated him and brought him into a heated building. He is quite tame and I don't want to lose him.
He eats and drinks...