Howard Williams sent us this photo of three Inca doves huddled up to keep warm. Although normally he does not ascribe human characteristics to birds, he does find Inca doves have the sweetest personalities and can often be seen grooming each other.

More on Inca doves courtesy Plateau Land & Wildlife Management:

The relatively tiny Inca doves are gray with white outer tail feathers. Inca’s have a distinctive fish scale pattern on their breast, head, and back feathers. This common Southwest species is one of the most desert-adapted of the family. Its plump body can survive both extreme heat and cold. They can go four or five days without drinking and fly 10 or more miles to reach a water hole. Their melodious "hoo hoo" repeated up to 30 times a minute fills the air during early summer. These doves are almost always seen in pairs. In the winter, Inca doves gather in flocks of up to 50. On cold winter days they have been known to form pyramids two or three tiers high in order to stay warm.