I understand your concern. But, I would advise against feeding at all in the morning before a hunt. As stated above, the digestion takes away from usable working energy and I think the risk of a twisted stomach is just to great. IMHO, best practice is to feed the night before, and pay attention to your dog. If she needs a rest, or to warm up, do so. And there is no rule that says the dog has to pickup all the birds. In fact making them sit and watching you pick some up is good for them (though we all know it pisses them off).