This is the first winter that I have had Red-breasted Nuthatches at my feeders.
Though it is primarily a full-time resident of northern and subalpine conifer forests, the Red-breasted Nuthatch regularly migrates irruptively, with both the number migrating and the wintering locations varying from year to year. They sometimes reach northern Mexico, where they are rare winter visitors to Nuevo Leon, Baja California Norte and south along the Pacific slope as far as Sinaloa. In the eastern United States, its range is expanding southwards. Though formerly resident on Isla Guadalupe, an island off the western coast of Mexico, it appears to have been extirpated there, with the last known record of the species on the island dating from 1971. There is a single vagrant record for Mexico’s Isla Socorro. It is an extremely rare vagrant to Europe, with two records in the western Palearctic; one bird successfully overwintered in eastern England. (Wikipedia)