"We put ours in a compost bin to be used in the vegetable garden later."
Doesn't it stink when it gets wet in the compost bin? Compost doesn't break down well if it's dry.
We've had a wet spring and it's been difficult to keep the compost from getting soaked. I have a pallet compost bin that is easy to cover with a tarp to keep excess rain out. When I need to get the compost "cooking", I add some green to the chicken litter - usually grass or weeds - give it a toss, make sure it has enough moisture to decompose but isn't soaking wet, and then tarp it. The tarp will also warm it up, accelerating the cooking process. Haven't had any problem with odor doing it this way.