To my eye all Canada geese look identical, down to the last feather, males and females too.
Yet they mate for life. It's fun to watch a happy couple meet after being apart and do their "Honey, I'm home" routine -- ahonk -- hink -- ahonk -- hink.
But if they all look exactly alike, how does a Canada goose recognize its spouse? Maybe they are monogamous because the grass always looks the same on the other side of the fence, so to speak -- the "no-temptation" theory of goose fidelity.
Or maybe relationships survive because the he-goose gets away with it. "Gosh, honey, I'm sorry. I thought she was you."
