James B. Purdy (1900) says that “the presence of the Red-headed Woodpecker (Melanerpes erythrocephalus) during the winter months in Michigan does not depend upon the temperature, but entirely upon the food supply, viz.: the crop of acorns and beechnuts which precedes the winter. If these nuts are plenty, the red-headed woodpeckers will always be found during the winter months, but in no great abundance. If there are no acorns or beechnuts, this bird will be entirely absent in our Michigan forests.”
Robert Ridgway (1881) writes:
Ordinarily this species (Melanerpes erythrocephalus) is decidedly the most numerous of the Woodpeckers in Southeastern Illinois, while during the winter season it is often so excessively common in the sheltered bottom-lands as to outnumber all other species together, and, in fact, is voted a decided nuisance by the hunter, sportsman, or collector, on account of its well known habit of following any one carrying a gun, and annoying him by its continued chatter; at intervals sweeping before him and thus diverting attention. Being at this season always semi-gregarious, while they are of all woodpeckers the most restless and sportive, the annoyance which they thus cause is really no trifling matter.
Evidently, they do not always spend the winter even here, for he says: “In the early part of October, 1879, I paid my usual yearly visit to my old home, and scarcely had arrived at the house ere my father informed me, as a bit of news which he was well aware would both interest and surprise me, that the red-headed woodpeckers had all migrated; that for a number of nights preceding he had heard overhead their well-known notes as they winged their way to some more or less distant region; in short, that the woods that had been their home ‘knew them now no more.’”
Even as far south as South Carolina, according to Arthur T. Wayne (1910): “The controlling influence upon the migration of this species in winter is the presence or absence of acorns of the live and water oaks. If the crop of acorns is large, this woodpecker is abundant during the winter months, but if there are no acorns, the bird is entirely absent, no matter whether the season is mild or severe.”
DISTRIBUTION
Range.—Southern Canada and the United States east of the Rocky Mountains; irregularly migratory in the northern parts of its range.
Breeding range.—The breeding range of the red-headed woodpecker extends north to northern Montana (Strabane, Lewistown, Fairview, and Terry); northern North Dakota (Arnegard and Willow City); southern Manitoba (Lake St. Martin and Winnipeg); southern Ontario (Kenora, Cobden, and Ottawa); southern Quebec (Three Rivers and Hatley); and southern New Brunswick (St. John). The eastern limits of the range extend from New Brunswick (St. John) south along the Atlantic coast to Florida (Orlando and Fort Myers). South through the Gulf coastal regions of Florida, Mississippi, and Louisiana; central Texas (Waco); and central New Mexico (Fort Sumner and Albuquerque). West to New Mexico (Albuquerque and Santa Fe); central Colorado (Hotchkiss, Golden, Estes Park, and Fort Collins); eastern Wyoming (Laramie and Carey burst); and Montana (Kirby, Billings, Lewistown, and Strabane).
During the summer season the species also has been taken or observed north to southeastern Alberta (Medicine Hat, Big Stick, and Eastend); southern Saskatchewan (Oak Lake, Aweme, and Pilot mound); Quebec (Quebec City); and New Brunswick (Beaver Dam).
Winter range.—The normal winter range of the red-headed woodpecker appears to extend north to Oklahoma (Oklahoma City and Okmulgee); northeastern Iowa (National); Illinois (Ohio and Mount Carmel); Tennessee (Nashville and Knoxville); West Virginia (Charlestown and Clarksburg); and southeastern Pennsylvania (Philadelphia). At this season it is never common on the Atlantic coast north of South Carolina (Charleston), but is found from there south to southern Florida (Miami). From this point it winters westward along the Gulf coast to Louisiana and probably Texas. The western limits of the winter range appear to be central Texas (probably Somerset) and Oklahoma (Caddo and Oklahoma City).