Loons are a northern freshwater snowbird that winter here in SW FL in bay and near-shore ocean waters. They probably rarely set foot on land except when breeding. Thus one wonders, how do they sleep?
We have a backyard loon that hangs out near our dock in Lemon Bay. I have watched it take an afternoon nap while not only floating but also maintaining its position against a headwind. Talk about rocking in the cradle of the deep! It must keep its feet paddling while it snoozes but it is a light sleeper and quickly untucks its head at the sound of any potential danger.