That's good to hear! I'll keep her in the house overnight to keep an eye on her and if her crop doesn't empty then I'll make a vet appointment
A vet is ALWAYS your best alternative, especially an avian vet. You might call today, while you can, to see if your vet treats chickens. Some do; some don't.
It's better to find this out before you need them for obvious reasons. In other words, do your vet research well ahead of needing one, and put the vet's number (emergency and non-emergency) in your directory of numbers - one less thing to worry about during the stress of having a bird that's ill. Same goes for medicines, vitamins, and other therapies that chickens seem to need; keep a basic stock on hand, so you're not scurrying the day/night/weekend you need them... Been there, don't that!
Back to your bird: Since she has a full, solid crop, make sure she gets a nominal amount of water during her afternoon and evening before going to roost. This will make sure she's got some moisture in the crop to lubricate the contents for digestion.
HERE'S THE IMPORTANT PART:
First thing in the morning, check her crop, BEFORE she's been to the feeder. Make sure it's empty or close to it. If empty, she's likely fine barring other issues like disease, worms, reproductive issues (including eggbinding), and so on.
In addition to our Comets that I referred to above, we even had a big white hen in the past that in the evening had a crop so full it was nearly the size of a baseball or larger. She'd run across the yard, and that thing would swing back and forth so fast and so hard that we were afraid she might knock herself out one day - never happened, but the point is that a big, full-size bird like a Buff-Orpington can put away a LOT of feed in a day. Our Comets are about half the size of Buff-Orpingtons...
