Many people don't realize that one of the two hummingbird species we see in Portland stays year-round. Rufus hummingbirds migrate south for the winter, but Anna's hummingbirds will stay - if they have food. The sugar-water hummingbird nectar will freeze if the temperature dips too low, so when it's cold, we put ours on a warming pad to keep it thawed. The reward? Year-round hummingbirds, close enough to get pictures like this, perching on the ice-covered branch of a flowering pear tree.