Well... it's always hard to say that there's no problem, I'm not a vet and I'm not there. My birds don't always have full crops, that varies. They tend to store a bunch of food in their crop during the day to give themselves " midnight snacks" while sleeping. My roo usually doesn't have the big crop that the ladies do. He's good to let the girls know when there's good stuff to eat rather than eating it himself. You know your own birds' normal behavior- if you see him acting different that's when you pay closer attention. You'll learn when his breast is thin (keel is prominent, he just feels thin), or overweight. My guy is rarely fatty or as plump as the girls, but he looks like he'd make a good meal

his behavior is usually the first thing that I notice. Is he as perky as normal, or sitting all fluffed up or listless. My guy is always diligent of everything around and is a good protector of the girls. If he was ignoring his duties I'd pay close attention. It's just not like him and tells me that he doesn't feel good.