It’s been a while since we had some photo from evolutionary ecologist Bruce Lyon at UC Santa Cruz, but he came through yesterday with some lovely photos of DUCKS! Bruce’s captions and IDs are indented, and you can enlarge his photos by clicking on them. It comes in the form of a letter to me:
Dear Dr Coyne
Please step away from the duck. Don’t hurt the duck. I have a friend who is a doctor and who can help you (PhD and he studies ducks). He can help your duck syndrome (yes there is such a thing).
While you are waiting for help to arrive, here are some photos to calm your frayed nerves and stop the incessant paddling.
The photos were taken at Neary Lagoon, a city park near my home. It is the best place to see wood ducks (Aix sponsa) locally. They hang out in the wetlands in the park and often fly over to feed on settling ponds at the nearby sewage treatment facility. Delicious! The park also has lots mallards (Anas platyrhynchos).
The wood ducks are often hidden from view—they perch on branches in dense vegetation at the edge of the lagoon. But sometimes they come out and paddle around, giving nice views. Ducks pair up earlier than many other birds and many birds are in pairs but some are courting.
Darwin famously said that peacocks made him feel ill—”The sight of a feather in a peacock’s tail, whenever I gaze at it, makes me sick!” (expressed in a letter to his friend Asa Gray). The peacock’s ornamentation is so crazy complex that Darwin found it hard to explain. Sure, sexual selection explains why animals are ornamented, but this is just crazy. I feel the same way about male wood ducks, but I feel awe instead of nausea:
This male was courting a female that was perched above him out of frame. He would do head tilts while puffing out part of his plumage:
The courting male photographed mid head tilt. Note his fanned out buffy flanks with the nice black and white edging. Clearly, fanning out a specific part of the plumage like this suggests that is an important part of the display:
A lovely female wood duck but not the object of the above male’s desire:
In fact, the above male, who was courting a female perched out of sight above him, often pecked at the female that was sitting right next to him. Perhaps she was interested in him, but the attraction was not mutual:
A male wood duck on the water:
Not far away, mallards provided great opportunities for getting flight shots. I like this one because the out-of-focus males in the background add a pleasing element:
Flight shots can be challenging but these mallards made it easy. They wanted to roost on the floating walkway in the marsh and would swim up close to the walkway and bob their head rapidly up and down a few seconds before launching into flight. Made it easy. Here is a female mallard approaching the railing:
