Yesterday around sunset very cold weather blew in, bringing with it three inches of snow and temperatures that dropped into the minus teens.
Today I took an early lunch break and walked in the Bear Creek Greenbelt. The temperature was -10 degrees Fahrenheit, the wind was calm, and the sky was sunny.
I saw dozens of American Robins, including this fluffed-out individual:

American Robin
The robins were eating berries that have been ignored by all birds these past few months. Maybe the cold made them palatable or maybe it was the best food the robins could find?

American Robin
I also saw three Cedar Waxwings. Here’s one:

Cedar Waxwing
The pond that never freezes continued to live up to its name. It hosted six Hooded Mergansers, seven Canada Geese, one Common Goldeneye (female), and 52 Mallards. Here’s a Canada Goose coming in for a landing:

Canada Goose
Postscript: Yesterday I had occasion to drive along the northern edge of the Bear Creek Greenbelt, along Yale Ave. between Kipling St. and Estes. A bird perched on a road sign sallied forth in a circle and returned to the same sign. I swung the car off the road, parked, and leapt out. It was a Say’s Phoebe! I did not have my camera with me, and my iPhone did the bird no justice. Later, I learned that there’s a very small, but regular, population of Say’s Phoebes that spend the winter in Jefferson County.