The Wikipedia article of the day for February 5, 2018 is White-breasted nuthatch.
The white-breasted nuthatch (Sitta carolinensis) is a small songbird that breeds in old-growth woodland across much of temperate North America. It is a stocky nuthatch with a large head, short tail, powerful bill, and strong feet. The upperparts are pale blue-gray, and the face and underparts are white. It has a black cap and a chestnut lower belly. The nine subspecies differ mainly in the color of the body plumage. Like other nuthatches, the white-breasted nuthatch forages for insects on trunks and branches and is able to move head-first down trees. Seeds form a substantial part of its winter diet, as do acorns and hickory nuts that were stored by the bird in the fall. The nest is in a hole in a tree, and a breeding pair may smear insects around the entrance as a deterrent to squirrels. Adults and their young may be killed by hawks, owls, and snakes, and forest clearance may lead to local habitat loss, but this is a common species with no major conservation concerns over most of its range.