Not all ducks quack

That's probably no big news for people used to wildlife, but to us confirmed city dwellers, well, you learn something every day. On a walk around Jamaica Pond this afternoon, I spotted this smallish duck come in over the water and land near some other ducks and ducklings. As it came in, it seemed to be whistling, rather than quacking.

Thanks to some folks on Twitter for identifying it as a wood duck.