This wonderful poem is called "Birdsfoot Grampa" and is by Joseph Bruchac, from his collection of poems called "Entering Onondaga". Joseph Bruchac is a native American storyteller, poet, singer
http://www.josephbruchac.com/). This poem is one of my alltime favourites for what it expresses. Those of us who also stop and help toads (and frogs and turtles and snakes, etc.) across the road, understand, like Birdsfoot Grampa, that they too have places to go...