My chickens eat the avocados right off the ground. Dog actually will pick them off the trees, when he can reach a low hanging branch, bury them until ripe and then eat them. Here in Fallbrook Ca in the rural area most people are growing avocados. Our local population of coyotes, squirrels and other miscellaneous wildlife all eat avocados and seem to have no ill effects. Could they just be used to that in their diet?