These mountain chickadee parents have been spending much of their time foraging for food to feed their young who are safely hidden away inside this lodgepole pine tree. Their nests are often found in tree cavities like this one and are made out of bark fibers, moss, animal hair, and feathers. Mountain chickadees feed mostly on a wide variety of insects, seeds, and berries. At first, the female will spend a lot of time with the young chicks while the male brings most of the food; later, both pare