I love that song, and I haven’t thought of it in years. I like the version where the little one’s refrain is “I’m crowded. Roll over.” The punchline is that when you get to the end, and the only bear left in the bed is the little one, he then says either “I’m lonely” …or “Good night!”
This week, I learned that Pied-billed Grebes (Podilymbus podiceps) can float and swim with just the upper part of their heads above the water. (All About Birds calls them ‘part bird, part submarine’.) They do this by adjusting their buoyancy via the amount of air trapped in their feathers.
I also learned that their songs are hugely out of proportion to the amount of bird. You hear this loud, deep whooping call …and then this fuzzy little plush toy paddles by. 