Hello: Many years ago I took some pictures of several Winter Kills in the Lamar Valley...the Wolves, Coyotes and birds had a feast. Some of the Ravens took tasty bits and buried them in the snow not far from the road just East of the Yellowstone Institute in the Lamar Valley. We came out daily and sure enough as we were watching Wolves come and go from a carcass a Raven landed and started uncovering one of his stash pits...This was observed by a Coyote who thought he would just come in and snatch the Ravens food...Not so easy. The Raven stood his ground and as the Coyote gradually nabbed most of the food the Coyote left a bit for the Raven. Perhaps that was a way of saying thank you to the Raven for sharing his food. Raven and Coyote are important elements in the Origin stories of many cultures. Here is a picture of the Raven and Coyote talking about the Raven's food stash. Ravens follow Wolves and Coyotes as there may be a carcass near by too.
Thanks for the piece about the Crow stashing food...it brought back some great memories of the Lamar Valley of Yellowstone NP.
Peter