From my office window I can see a long patch of open water on the Megunticook River. This afternoon two pairs of spiffy common mergansers were hanging out together there, diving and drifting for a few hours. They were in bright breeding plumage and close enough that the males' green heads contrasted strikingly with their white bodies, and their bills were a vivid red-orange visible without binoculars. Pair bonds already formed, they're on their way to lakes and rivers further inland to breed.

The river opens.
Thoughts turned to nesting northward,
ducks gather, pair off.