LITERATURE CITED

Achilles, Laurence.

1906. Nesting of the Arctic three-toed woodpecker in the Adirondacks. Bird-Lore, vol. 8, pp. 158-160.

Agersborg, Gilbert Smith.

1881. Novel nesting-sites of woodpeckers (Colaptes auratus and Melanerpes erythrocephalus). Bull. Nuttall Orn. Club, vol. 6, p. 120.

Alderson, V. A.

1890. Hairy woodpecker and potato bugs. Oologist, vol. 7, p. 147.

Allen, Arthur Augustus.

1928. Downy woodpecker’s story. Bird-Lore, vol. 30, pp. 415-424.

1937. Hunting with a microphone the voices of vanishing birds. Nat. Geogr. Mag., vol. 71, pp. 697-706.

Allen, Arthur Augustus, and Kellogg, P. Paul.

1937. Recent observations on the ivory-billed woodpecker. Auk, vol. 54, pp. 164-184.

Allen, Joel Asaph.

1892. The North American species of the genus Colaptes, considered with special reference to the relationships of C. auratus and C. cafer. Bull. Amer. Mus. Nat. Hist., vol. 4, pp. 21-44.

Allert, Oscar Paul.

1934. Flicker kills young robins. Iowa Bird Life, vol. 4, p. 20.

American Ornithologists’ Union.

1910. Check-list of North American birds. Ed. 3.

1931. Check-list of North American birds. Ed. 4.

Anderson, Anders Harold.

1934. Food of the Gila woodpecker (Centurus uropygialis uropygialis). Auk, vol. 51, pp. 84-85.

Anderson, Malcolm P., and Grinnell, Joseph.

1903. Birds of the Siskiyou Mountains, California: A problem in distribution. Proc. Acad. Nat. Sci. Philadelphia, vol. 55, pp. 4-15.

Anthony, Alfred Webster.

1895a. Birds of San Fernando, Lower California. Auk, vol. 12, pp. 134-143.

1895b. New races of Colaptes and Passerella from the Pacific coast. Auk, vol. 12, pp. 347-349.

Arthur, Edmund Watts.

1934. Courtship dance of the pileated woodpecker. Cardinal, vol. 3, p. 173.

Attwater, Henry Philemon.

1892. List of birds observed in the vicinity of San Antonio, Bexar County, Texas. Auk, vol. 9, pp. 229-238.

Audubon, John James.

1842. The birds of America, vol. 4.

Bacon, C. C.

1891. A large set or series of the red-headed woodpecker. Oologist, vol. 8, p. 32.

Bailey, Florence Augusta Merriam.

1896. Notes on some of the birds of southern California. Auk, vol. 13, pp. 115-124.

1902. Handbook of birds of the Western United States.

1923. Birds recorded from the Santa Rita Mountains in southern Arizona. Pacific Coast Avifauna, no. 15.

1928. Birds of New Mexico.

Bailey, Harold Harris.

1913. The birds of Virginia.

1925. The birds of Florida.

Bailey, Harry Balch.

1878. Some new traits for the red-headed woodpecker (Melanerpes erythrocephalus). Bull. Nuttall Orn. Club, vol. 3, p. 97.

1883. Memoranda of a collection of eggs from Georgia. Bull. Nuttall Orn. Club, vol. 8, pp. 37-43.

Baird, Spencer Fullerton.

1858. Pacific Railroad Reports, vol. 9, pt. 2. Birds.

Baird, Spencer Fullerton; Cassin, John; and Lawrence, George Newbold.

1860. The birds of North America.

Bancroft, Griffing.

1930. The breeding birds of central Lower California. Condor, vol. 32, pp. 20-49.

Bangs, Outram.

1898. Some new races of birds from eastern North America. Auk, vol. 15, pp. 173-183.

1900. A review of the three-toed woodpeckers of North America. Auk, vol. 17, pp. 126-142.

1910. A new race of the pileated woodpecker. Proc. New England Zool. Club, vol. 4, pp. 79-80.

Barrows, Walter Bradford.

1912. Michigan bird life.

Batchelder, Charles Foster.

1889. An undescribed subspecies of Dryobates pubescens. Auk, vol. 6, pp. 253-255.

1908. The Newfoundland hairy woodpecker. Proc. New England Zool. Club, vol. 4, pp. 37-38.

Baynard, Oscar Edward.

1913. Breeding birds of Alachua County, Florida. Auk, vol. 30, pp. 240-247.

Beal, Foster Ellenborough Lascelles.

1895. Preliminary report on the food of woodpeckers. U. S. Dept. Agr. Div. Orn. and Mamm. Bull. 7.

1910. Birds of California in relation to the fruit industry, pt. 2. U. S. Dept. Agr. Biol. Surv. Bull. 34.

1911. Food of the woodpeckers of the United States. U. S. Dept. Agr. Biol. Surv. Bull. 37.

Bendire, Charles Emil.

1895. Life histories of North American birds. U. S. Nat. Mus. Spec. Bull. 3.

Beyer, George Eugene.

1900. The ivory-billed woodpecker in Louisiana. Auk, vol. 17, pp. 97-99.

Beyer, George Eugene; Allison, Andrew; and Kopman, Henry Hazlitt.

1908. List of the birds of Louisiana. Auk, vol. 25, pp. 173-180, 439-448.

Bicknell, Eugene Pintard.

1885. A study of the singing of our birds. Auk, vol. 2, pp. 249-262.

Blackwelder, Eliot.

1909. Summer birds of Iron County, Michigan. Auk, vol. 26, pp. 363-370.

Blincoe, Benedict Joseph.

1923. Random notes on the feeding habits of some Kentucky birds. Wilson Bull., vol. 35, pp. 63-71.

Bolles, Frank.

1891. Yellow-bellied woodpeckers and their uninvited guests. Auk, vol. 8, pp. 256-270. 1892. Young sapsuckers in captivity. Auk, vol. 9, pp. 109-119.

Bowles, John Hooper.

1926. Regularity in habits of the northwestern flicker. Murrelet, vol. 7, p. 42.

Brasher, Rex.

1926. Secrets of the friendly woods.

Brewster, William.

1876a. The yellow-bellied woodpecker (Sphyrapicus varius). Bull. Nuttall Orn. Club, vol. 1, pp. 63-70.

1876b. Some observations on the birds of Ritchie County, West Virginia. Ann. Lyc. Nat. Hist. New York, vol. 11, pp. 129-146.

1882. Impressions of some southern birds. Bull. Nuttall Orn. Club, vol. 7, pp. 94-104.

1889. Melanerpes carolinus eating oranges. Auk, vol. 6, pp. 337-338.

1897. On the nomenclature of certain forms of the downy woodpecker. (Dryobates pubescens). Auk, vol. 14, pp. 80-82.

1898. Notes on the American three-toed woodpecker (Picoides americanus). Osprey, vol. 2, pp. 73-76.

1902. Birds of the Cape region of Lower California. Bull. Mus. Comp. Zool., vol. 41, pp. 1-241.

1906. Birds of the Cambridge region. Mem. Nuttall Orn. Club, no. 4.

1909. Eggs of the flicker (Colaptes auratus luteus) found in an odd place. Bird-Lore, vol. 11, pp. 73-74.

1936. October Farm.

1937. Concord River.

Brooks, Maurice.

1934. Some traits of the northern pileated woodpecker. Bird-Lore, vol. 36, pp. 347-351.

Brown, Herbert.

1902. Unusual abundance of Lewis’s woodpecker near Tucson, Arizona, in 1884. Auk, vol. 19, pp. 80-83.

Bryant, Harold Child.

1916. A note on the food of the northern pileated woodpecker. Condor, vol. 18, p. 32.

1921. California woodpecker steals eggs of wood pewee. Condor, vol. 23, p. 33.

Bryant, Walter (Pierc)E.

1887. Additions to the ornithology of Guadalupe Island. Bull. California Acad. Sci., vol. 2, pp. 269-318.

Bryens, Oscar McKinley.

1926. Actions of the northern pileated woodpecker. Auk, vol. 43, p. 98.

Burleigh, Thomas Dearborn.

1931. Notes on the breeding birds of State College, Centre County, Pennsylvania. Wilson Bull., vol. 43, pp. 37-42.

Burmeister, Carl Hermann Conrad.

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.

Cassin, John.

1852. Descriptions of birds of the genera Laniarius, Dicrurus, Graucalus, Manacus and Picus, specimens of which are in the collection of the Academy of Natural Sciences of Philadelphia. Proc. Acad. Nat. Sci. Philadelphia, vol. 5, pp. 347-349.

1854. Illustrations of the birds of California, Texas, Oregon, British and Russian America, pt. 7.

Catesby, Mark.

1731. The natural history of Carolina, Florida and the Bahama Islands, vol. 1.

Christy, Bayard Henderson.

1931. Nesting of the red-bellied woodpecker in Beaver County. Cardinal, vol. 3, pp. 44-45.

Cooper, James Graham.

1870. Geological survey of California. Ornithology, vol. 1. Land birds.

Coues, Elliott.

1874. Birds of the Northwest.

Currier, Edmonde Samuel.

1928. Lewis woodpeckers nesting in colonies. Condor, vol. 30, p. 356.

Dawson, William Leon.

1903. The birds of Ohio.

1923. The birds of California, vol. 2.

Dawson, William Leon, and Bowles, John Hooper.

1909. The birds of Washington, vol. 1.

Dice, Lee Raymond.

1918. The birds of Walla Walla and Columbia Counties, southeastern Washington. Auk, vol. 35, pp. 40-51.

Dingle, Edward von Siebold.

1926. Red-cockaded woodpecker in cornfields. Bird-Lore, vol. 28, pp. 124-125.

Dixon, Joseph Scattergood.

1927. Black bear tries to gnaw into a woodpecker’s nest. Condor, vol. 29, pp. 271-272.

Dorsey, George Andrew.

1926. A red-headed woodpecker storing acorns. Bird-Lore, vol. 28, pp. 333-334.

Duncan, Mrs. Sanford.

1932. Flicker captured by a bullsnake. Migrant, vol. 3, p. 9.

Dwight, Jonathan, Jr.

1893. Summer birds of Prince Edward Island. Auk, vol. 10, pp. 1-15.

Eaton, Elon Howard.

1914. Birds of New York. New York State Mus. Mem. 12, pt. 2.

Eckstrom, Fannie Hardy.

1901. The woodpeckers.

Eifrig, Charles William Gustave.

1906. Notes on some northern birds. Auk, vol. 23, pp. 313-318.

1919. Notes on birds of the Chicago area and its immediate vicinity. Auk, vol. 36, pp. 513-524.

Emerson, William Otto.

1893. Random bird-notes from Merced Big Trees and Yosemite Valley. Zoe, vol. 4, pp. 176-182.

1899. Fall notes from Haywards, Cal. Bull. Cooper Orn. Club, vol. 1, p. 28.

Erichsen, Walter Jefferson.

1920. Observations on the habits of some breeding birds of Chatham County, Georgia. Wilson Bull., vol. 32, pp. 133-139.

Errington, Paul Lester.

1936. Winter-killing of flickers in central Iowa. Auk, vol. 53, pp. 334-335.

Evermann, Barton Warren.

1889. Birds of Carroll County, Indiana. Auk, vol. 6, pp. 22-30.

Farley, John Austin.

1901. Massachusetts bird notes. Auk, vol. 18, pp. 398-400.

Fisher, Walter Kenrick.

1902. The downy woodpeckers of California. Condor, vol. 4, pp. 68-70.

Fisher, William Harmanus.

1903. Nesting of the red-bellied woodpecker in Harford County, Maryland, Auk, vol. 20, pp. 305-306.

Flanagan, John Henry.

1911. Some Colorado woodpecker and sapsucker notes. Oologist, vol. 28, pp. 69-71.

Fleming, James Henry.

1901. A list of the birds of the Districts Parry Sound and Muskoka, Ontario. Auk, vol. 18, pp. 33-45.

Forbush, Edward Howe.

1913. Useful birds and their protection.

1927. Birds of Massachusetts and other New England States, vol. 2.

Fowler, Frederick Hall.

1903. Stray notes from southern Arizona. Condor, vol. 5, pp. 68-71, 106-107.

Fritz, Emanuel.

1937. Sapsuckers on redwood. Condor, vol. 39, pp. 36-37.

Ganier, Albert Franklin.

1926. An unusual flicker’s nest. Wilson Bull., vol. 38, p. 116.

Gibbs, Morris.

1902. The movements of birds. Oologist, vol. 19, pp. 83-85.

Gignoux, Claude.

1921. The storage of almonds by the California woodpecker. Condor, vol. 23, pp. 118-121.

Gilman, Marshall French.

1915. Woodpeckers of the Arizona lowlands. Condor, vol. 17, pp. 151-163.

Goodpasture, A. V.

1909. Woodpeckers and June-bugs. Bird-Lore, vol. 11, pp. 196-197.

Grimes, Samuel Andrew.

1932. Notes on the 1931 nesting season in the Jacksonville region. Florida Nat., vol. 5, pp. 57-63.

Grinnell, Joseph.

1900. Birds of the Kotzebue Sound region, Alaska. Pacific Coast Avifauna, no. 1.

1901. Two races of the red-breasted sapsucker. Condor, vol. 3, p. 12.

1902. The southern white-headed woodpecker. Condor, vol. 4, pp. 89-90.

1908. The biota of the San Bernardino Mountains. Univ. California Publ. Zool., vol. 5, pp. 1-170.

1909. Birds and mammals of the 1907 Alexander expedition to southeastern Alaska. Univ. California Publ. Zool., vol. 5, pp. 171-264.

1910. Birds of the 1908 Alexander Alaska expedition, Univ. California Publ. Zool., vol. 5, pp. 361-428.

1914. An account of the mammals and birds of the lower Colorado Valley with especial reference to the distributional problems presented. Univ. California Publ. Zool., vol. 12, pp. 51-294.

1927a. A new race of Gila woodpecker from Lower California. Condor, vol. 29, pp. 168-169.

1927b. Six new subspecies of birds from Lower California. Auk, vol. 44, pp. 67-72.

1928a. Do willow woodpeckers ever drill in tree-bark? Condor, vol. 30, pp. 253-254.

1928b. A distributional summation of the ornithology of Lower California. Univ. California Publ. Zool., vol. 32, pp. 1-300.

Grinnell, Joseph; Dixon, Joseph Scattergood; and Linsale, Jean Myron.

1930. Vertebrate natural history of a section of northern California through the Lassen Peak region. Univ. California Publ. Zool., vol. 35, pp. 1-594.

Grinnell, Joseph, and Storer, Tracy Irwin.

1924. Animal life in the Yosemite.

Grinnell, Joseph, and Swarth, Harry Schelwaldt.

1926. A new race of acorn-storing woodpecker, from Lower California. Condor, vol. 28, pp. 176-178.

Griscom, Ludlow.

1929. Changes in the status of certain birds in the New York City region. Auk, vol. 46, pp. 45-57.

Hargitt, Edward.

1886. Notes on woodpeckers—no. 11. On a new species from Arizona. Ibis, ser. 5, vol. 4, pp. 112-115.

Harlow, Richard Cresson.

1914. Nesting of the northern pileated woodpecker. Oologist, vol. 31, pp. 82-85.

Hartert, Ernst.

1912. Die Vögel der paläarktischen Fauna, Heft 7 (Band 2, I).

Hasbrouck, Edwin Marble.

1889. Summer birds of Eastland County, Texas. Auk, vol. 6, pp. 236-241.

Helme, Arthur Hudson.

1882. Red-headed woodpeckers. Ornithologist and Oologist, vol. 7, p. 107.

Henderson, Junius.

1927. The practical value of birds.

Henshaw, Henry Wetherbee.

1875. Report upon the ornithological collections obtained from portions of Nevada, Utah, California, Colorado, New Mexico, and Arizona, during the years 1871, 1872, 1873 and 1874.

1921. The storage of acorns by the California woodpecker. Condor, vol. 23, pp. 109-118.

Hoffman, Ralph.

1927. Birds of the Pacific States.

Holland, Harold May.

1931. Doves and woodpeckers. Oologist vol. 48, pp. 61-63.

Hollister, Ned.

1918, A sanctuary within a sanctuary. Bird-Lore, vol. 20, pp. 158-159.

Howell, Arthur Holmes.

1924. Birds of Alabama.

1932. Florida bird life.

Hoyt, Robert Day.

1905. Nesting of the ivory-billed woodpecker in Florida. Warbler, ser. 2, vol. 1, pp. 52-55.

Huey, Laurence Markham.

1927. A discussion of the zonal status of the Sierra San Pedro Martir, Lower California, Mexico, with descriptions of a new kangaroo rat and a new woodpecker from that region. Trans. San Diego Soc. Nat. Hist., vol. 5, pp. 1-10.

Ingersoll, Ernest.

1906. The wit of the wild.

Jenks, Randolph.

1934. Unusual nesting records from northern Arizona. Condor, vol. 36, pp. 172-176.

Jensen, Jens Knudsen.

1923. Notes on the nesting birds of northern Santa Fe County, New Mexico. Auk, vol. 40, pp. 452-469.

Jones, Howard.

1883. An unrecorded habit of the red-headed woodpecker. Ornithologist and Oologist, vol. 8, p. 56.

Kennard, Frederic Hedge.

1895. January occurrence of the “sapsucker” in Brookline, Mass. Auk, vol. 12, pp. 301-302.

King, Franklin Hiram.

1883. Economic relations of Wisconsin birds. Geology of Wisconsin, Survey of 1873-1879, pp. 441-610.

Klugh, A. B.

1909. A remarkable migration of yellow-bellied sapsuckers. Ottawa Nat., vol. 23, pp. 115-116.

Knight, Ora Willis.

1908. The birds of Maine.

Kopman, Henry Hazlitt.

1915. List of the birds of Louisiana, pt. 6. Auk, vol. 32, pp. 15-29.

Kumlien, Ludwig, and Hollister, Ned.

1903. The birds of Wisconsin. Bull. Wisconsin Nat. Hist. Soc., new ser., vol. 3, pp. 1-143.

Kyler, Mrs. John Franklin.

1927. Bob, the redhead. Bird-Lore, vol. 29, pp. 335-338.

Laing, Hamilton Mack, and Taverner, Percy Algernon.

1929. Notes on birds collected and observed in Chitina River region, Alaska. Ann. Rep. Nat. Mus. Canada, 1927, pp. 72-95.

Latham, John.

1783. A general synopsis of birds, vol. 1.

Law, John Eugene.

1929. Another Lewis woodpecker stores acorns. Condor, vol. 31, pp. 233-238.

Leach, Frank A.

1925. Communism in the California woodpecker. Condor, vol. 27, pp. 12-19.

Leister, Claude Willard.

1919. Aerial evolutions of a flicker. Auk, vol. 36, p. 570.

Linnaeus, Carl.

1758. Systema naturae. Ed. 10.

Lloyd, Hoyes.

1932. The birds of Ottawa—Addenda. Canadian Field-Nat., vol. 46, pp. 123-127.

Lyon, William Isaac.

1922. Owl kidnaps young flickers. Wilson Bull., vol. 84, pp. 230-231.

MacFarlane, Roderick Ross.

1908. List of birds and eggs observed and collected in the northwest Territories of Canada, between 1880 and 1894. In, Through the Mackenzie Basin, by Charles Mair.

Macoun, John.

1909. Catalogue of Canadian birds. Ed. 2.

Maynard, Charles Johnson.

1896. The birds of eastern North America. Revised edition.

McAtee, Waldo Lee.

1911. Woodpeckers in relation to trees and wood products. U. S. Dept. Agric. Biol. Surv. Bull. 39.

McGuire. N. M.

1932. A red-bellied woodpecker robs a sapsucker. Wilson Bull., vol. 44, p. 39.

Mearns, Edgar Alexander.

1890a. Descriptions of a new species and three new subspecies of birds from Arizona. Auk, vol. 7, pp. 243-251.

1890b. Observations on the avifauna of portions of Arizona. Auk, vol. 7, pp. 251-264.

Merriam, Clinton Hart.

1878. Remarks on some of the birds of Lewis County, northern New York. Bull. Nuttall Orn. Club, vol. 8, pp. 123-128.

1879. Remarks on some of the birds of Lewis County, northern New York. Bull. Nuttall Orn. Club, vol. 4, pp. 1-7.

Merriam, Robert Owen.

1920. Snow bathing. Bird-Lore, vol. 22, p. 348.

Merrill, James Cushing.

1888. Notes on the birds of Fort Klamath, Oregon. Auk, vol. 5 pp 139-146, 251-262.

Michael, Charles Wilson.

1926. Acorn storing methods of the California and Lewis woodpeckers. Condor, vol. 28, pp. 68-69.

1928. The pileated woodpecker feeds on berries. Condor, vol. 30, p. 157.

1935. Nesting of the Williamson sapsucker. Condor, vol. 37, pp. 209-210.

Minot, Henry Davis.

1877. The land and game birds of New England.

Moore, William H.

1902. Notes on some Canadian birds. Ottawa Nat., vol. 16, pp. 130-134.

Morrell, Clarence Henry.

1901. Notes on the pileated woodpecker. Journ. Maine Orn. Soc., vol. 8, p. 32.

Morse, George Washington.

1927. Notes on a red-cockaded woodpecker. Oologist, vol. 44, pp. 22-23.

Mortimer D. [= B. (Benjamin.)].

1890. Notes on habits of a few birds of Orange County, Florida. Auk, vol. 7, pp. 337-343.

Mousley, Henry.

1916. Five years personal notes and observations on the birds of Hatley, Stanstead County, Quebec—1911-1915. Auk, vol. 33, pp. 57-73.

Munro, James Alexander.

1919. Notes on some birds of the Okanagan Valley, British Columbia. Auk, vol. 36, pp. 64-74.

1923. The pileated woodpecker. Canadian Field-Nat., vol. 37, pp. 85-88.

1930. Miscellaneous notes on some British Columbia birds. Condor, vol. 32, pp. 65-68.

Myers, Harriet Williams.

1915. A late nesting record for the California woodpecker. Condor, vol. 17, pp. 183-185.

Nauman, E. D.

1930. The red-headed woodpecker. Bird-Lore, vol. 32, pp. 128-129.

1932. The red-headed woodpecker as a mouser. Wilson Bull., vol. 44, p. 44.

Neff, Johnson Andrew.

1928. A study of the economic status of the common woodpeckers in relation to Oregon horticulture.

Nehrlinq, Henry.

1882. List of birds observed at Houston, Harris Co., Texas, and in the Counties Montgomery, Galveston and Fort Bend. Bull. Nuttall Orn. Club, vol. 7, pp. 166-175.

Nelson, Edward William.

1887. Report upon natural history collections made in Alaska between the years 1877 and 1881. U. S. Signal Service, Arctic ser., no. 3.

Newberry, John Strong.

1857. Report upon the zoology of the route. U. S. Pacific Railroad Reports, vol. 6, pt. 4, pp. 35-110.

Norris, Joseph Parker.

1888. Five sets of eggs from one bird in one season. Ornithologist and Oologist, vol. 13, p. 102.

Nuttall, Thomas.

1832. A manual of the ornithology of the United States and of Canada, vol. 1. Land birds.

Nye, Harriet Augusta.

1918. The sapsucker wintering in central Maine. Auk, vol. 35, pp. 353-354.

Oberholser, Harry Church.

1896a. Descriptions of two new subspecies of the downy woodpecker, Dryobates pubescens (Linnaeus). Proc. U. S. Nat. Mus., vol. 18, pp. 547-550.

1896b. A preliminary list of the birds of Wayne County, Ohio. Bull. Ohio Experiment Sta., vol. 1, pp. 243-353.

1911a. A revision of the forms of the hairy woodpecker (Dryobates villosus [Linnaeus]). Proc. U. S. Nat. Mus., vol. 40, pp. 595-621.

1911b. A revision of the forms of the ladder-backed woodpecker (Dryobates scalaris [Wagler]). Proc. U. S. Nat. Mus., vol. 41, pp. 139-159.

Osgood, Wilfred Hudson.

1901. Natural history of the Queen Charlotte Islands, British Columbia. North Amer. Fauna, no. 21, pp. 7-50.

Palmer, William.

1901. The malar stripe of young flickers and the molt. Osprey, vol. 5, pp. 102-104.

Pearse, Theed.

1934. Display of Harris woodpecker. Murrelet, vol. 15, pp. 25-26.

Pearson, Thomas Gilbert.

1909. Nesting of the red-cockaded woodpecker. Bird-Lore, vol. 11, pp. 265-266.

Pennant, Thomas.

1785. Arctic zoology, vol. 2.

Phelps, Frank Mills.

1914. The resident bird life of the Big Cypress Swamp region. Wilson Bull., vol. 26, pp. 86-101.

Philipp, Philip Bernard, and Bowdish, Beecher Scoville.

1917. Some summer birds of northern New Brunswick. Auk, vol. 84, pp. 265-275.

1919. Further notes on New Brunswick birds. Auk, vol. 36, pp. 36-45.

Pierce, Wright McEwan.

1916. More bird notes from Big Bear Valley, San Bernardino Mountains. Condor, vol. 18, pp. 177-182.

Potter, Julian Kent.

1912. Red-headed woodpecker at Camden, N. J. Bird-Lore, vol. 14, pp. 216-217.

Purdy, James Britton.

1900. The red-headed and other woodpeckers in Michigan in winter. Auk, vol. 17, p. 174.

Reid, Savile Grey.

1884. The birds of Bermuda. U. S. Nat. Mus. Bull. 25, pp. 163-279.

Ridgway, Robert.

1876. Ornithology of Guadeloupe Island. Bull. Hayden Surv. Terr., vol. 2, pp. 183-195.

1877. United States geological exploration of the fortieth parallel. Part 3. Ornithology.

1881. An unaccountable migration of the red-headed woodpecker. Bull. Nuttall Orn. Club, vol. 6, pp. 120-122.

1898. The home of the ivory-bill. Osprey, vol. 3, pp. 35-36.

1914. The birds of North and Middle America. U. S. Nat. Mus. Bull. 50, pt 6.

Ritter, William Emerson.

1921. Acorn-storing by the California woodpecker. Condor, vol. 23, pp. 3-14.

1922. Further observations on the activities of the California woodpecker. Condor, vol. 24, pp. 109-122.

1938. The California woodpecker and I.

Roberts, Thomas Sadler.

1932. The birds of Minnesota, vol. 1.

Sampson, Elizabeth.

1934. Downy goes visiting. Bird-Lore, vol. 36, pp. 356-260.

Saunders, Aretas Andrews.

1921. A distributional list of the birds of Montana. Pacific Coast Avifauna, no. 14.

1929. The summer birds of the northern Adirondack Mountains. Roosevelt Wild Life Bull., vol. 5, no. 3.

1935. A guide to bird songs.

Scott, William Earl Dodge.

1881. On birds observed in Sumpter, Levy and Hillsboro Counties, Florida. Bull. Nuttall Orn. Club, vol. 6, pp. 14-21.

1886. On the avi-fauna of Pinal County, with remarks on some birds of Pima and Gila Counties, Arizona. Auk, vol. 3, pp. 421-432.

1888. Supplementary notes from the Gulf coast of Florida, with a description of a new species of marsh wren. Auk, vol. 5, pp. 183-188.

Scoville, Samuel, Jr.

1920. The pileated woodpecker. Cassinia, for 1919, no. 23, p. 14.

Semple, John Bonner.

1930. Red-headed woodpeckers in migratory flight. Auk, vol. 47, pp. 84-85.

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