> Multivolume work
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Part 11:
The birds of North and Middle America Part 11 Family Cathartidae - the American vultures, family Accipitridae - the hawks, eagles, kites, harriers, and old world vultures, family Pnadionidae - the ospreys, family Falconidae - the falcons and caracaras by Robert Ridgway, curator, Division of Birds
Washington: United States Government Printing Office, 1950
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Part 10:
The birds of North and Middle America Part 10 Family Cracidae - the curassows, guans and chachalacas, family Tetraonidae - the grouse, ptarmigan, etc., family Phasianidae - the American quails, partridges, and pheasants, family Numididae - the guineafowls, family Meleagrididae - the turkeys by Robert Ridgway, curator, Division of Birds
Washington: United States Government Printing Office, 1946
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Part 9:
The birds of North and Middle America Part 9 Family Gruidae - the cranes, family Rallidae - the rails, coots, and gallinules, family Heliornithedae - the sun-grebes, family Eurypygidae - the sun-bitterns by Robert Ridgway, curator, Division of Birds
Washington: United States Government Printing Office, 1941
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8:
The Birds of North and Middle America 8 Family jacanidae - the jacanas. Family oedicnemidae - the thick-knees. [u.a.] Robert Ridgway; Herbert Friedmann
Washington: Gov. Print. Off., 1919
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Part 7:
The birds of North and Middle America Part 7 Family Cuculidæ, family Psittacidæ, family Columbidæ by Robert Ridgway, curator, Division of Birds
Washington: Government Printing Office, 1916
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Part 6:
The birds of North and Middle America Part 6 Family Picidæ - the woodpeckers, family Capitonidæ - the barbets, family Ramphastidæ - the toucans, family Bocconidæ - the puff birds, family Galbulidæ - the jacamars, family Alcedinidæ - the kingsfishers, family Todidæ - the todies, family Momotidæ - the motmots, family Caprimulgidæ - the goatsuckers, family Nyctibiidæ - the potoos, family Tytonidæ - the barn owls, family Bubonidæ - the eared owls by Robert Ridgway, curator, Division of Birds
Washington: Government Printing Office, 1914
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Part 5:
The birds of North and Middle America Part 5 Family Pteroptochidæ - the tapaculos, family Formicariidæ - the antbirds, family Furnariidæ - the ovenbirds, family Dendrocolaptidæ - the woodhewers, family Trochilidæ - the humming birds, family Micropodidæ - the swifts, family Trogonidæ - the trogons by Robert Ridgway, curator, Division of Birds
Washington: Government Printing Office, 1911
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Part 4:
The birds of North and Middle America Part 4 Family Turdidæ - thrushes, family Zeledoniidæ - wren-thrushes, family Mimidæ - mockingbirds, family Sturnidæ - starlings, family Ploceidæ - weaver birds, family Alaudidæ - larks, family Oxyruncidæ -sharp-bills, family Tyrannidæ - tyrant flycatchers, family Pipridæ - manakins, family Cotingidæ - chatterers by Robert Ridgway, curator, Division of Birds
Washington: Government Printing Office, 1907
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Part 3:
The birds of North and Middle America Part 3 Family Motacillidæ - the wagtails an pipits, family Hirundinidæ - the swallows, family Amperlidæ - the waxwings, family Ptilogonatidæ - the silky flycatchers, family Dulidæ - the palm chats, family Vireonidæ - the vireos, family Laniidæ - the shrikes, family Corvidæ - the crowns and jays, family Paridæ - the titmice, family Sittidæ - the nuthatches, family Certhiidæ - the creepers, family Troglodytidæ - thre wrens, family Cinclidæ - the dippers, family Chamæidæ - the wren-tis, family Silviidæ - the warblers by Robert Ridgway, curator, Division of Birds
Washington: Government Printing Office, 1904
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Part 1:
The birds of North and Middle America Part 1 Family Fringillidæ - the finches by Robert Ridgway, curator, Division of Birds
Washington: Government Printing Office, 1901