Back to this week's update.

Winter Behavior
Many of the robins seen so far have been in winter feeding flocks, eating fruits and gathering together in trees. This Colorado observer reported interesting behavior: "When the snow starts, they hang out on the deck in the morning and look in the house. Once I toss out the raisins bunches of them will fly over to eat. It has cost me a fortune in raisins but I love to hear them call and vocalize, especially during a snowstorm."

Wave of robins in a tree in Colorado

Photo: Joyce Tracy