Just to keep things simple, and the end of hunt of day, we usually just put the birds all that i shoot in a large plastic bag. Keep it on ice, stays fine for the day or til i get home. If spending a night i keep each days birds in different bags. That way eliminates confusion when the GW stops you or checks your group out, i can support my story.
Just not worth the hassle of giving the GW a sad story or play games with them. Believe me they have heard all stories hunters can dream up.
The hearts, gizzards, make great giblet gravy if making a skillet diner!
"Walk softly and carry a big stick!"