1856. Systematische Uebersicht der Thiere Brasiliens welche während einer Reise durch die Provinzen von Rio de Janeiro und Minas Geraës gesammelt oder beobachtet wurden.
Burns, Franklin Lorenzo.
1900. Monograph of the flicker. Wilson Bull., vol. 7, pp. 1-82.
1903. A few additional notes on the flicker. Wilson Bull., vol. 10, pp. 24-26.
1915. Comparative periods of deposition and incubation of some North American birds. Wilson Bull., vol. 27, pp. 275-286.
1916. One hundred and thirty-two vernacular names for the flicker. Wilson Bull., vol. 28, pp. 90-91.
Burtch, Verdi.
1923. Red squirrel eating young hairy woodpecker. Auk, vol. 40, pp. 340-341.
Carriger, Henry Ward, and Wells, Gurnie.
1919. Nesting of the northern pileated woodpecker. Condor, vol. 21, pp. 153-156.