Today (1/4/11) there were two pair of mergansers in the Wetlands, and they were struttin’ their stuff!
As I inspected the boardwalk that leads down into the Wetlands for icy spots this morning, I noticed another pair of mergs on the now mostly open water.
The birds were doing their pair bond dance, or courtship display. Although the mergansers appear to already be paired, the males apparently have the need to reinforce those bonds when other males are in the area. Hmm.