One of the movies William watches is called "Fly Away Home". It's about a Canadian girl who raises geese from the time they hatch. When its time to migrate she shows them the way south with an ultralight. So when a gaggle of geese landed in our subdivision and walked around for several hours it was lots of fun to watch them. He watched them for hours. I even fixed him his lunch and he ate it in the living room so he could look out the window at the geese.