Title Genres Topics Date (Start) Date (End)
Woodward H. Brown letter to Peter C. Petersen regarding winter migration, March 19, 1966 Correspondence Field notes Bird watching Birds--Migration Birds--Research Columbiformes | Doves and Pigeons Sittidae | Nuthatches Ornithology--Methodology 1966-03-19 N/A
Woodward H. Brown letter to Peter C. Petersen regarding winter migration, April 2, 1966 Correspondence Field notes Bird watching Birds--Migration Birds--Research Ornithology--Methodology 1966-04-02 N/A
Winter censuses, Ames, Iowa, January-March 1971 Field notes Charts (graphic documents) Bird watching Birds--Counting Birds--Migration 1971-01-16 1971-03-07
Waterfowl migration survey, Missouri River, November 27, 1994 Field notes Forms (documents) Surveys (documents) Bird watching Birds--Counting Birds--Migration Weather Waterfowl 1994-11-27 N/A
Waterfowl conditions in the Missouri Valley Reports Birds--Migration Anseriformes | Ducks, Geese, and Swans Wildlife conservation Wildlife refuges Waterfowl N/A N/A
Warblers, and how to identify them Lecture notes Birds--Behavior Birds--Habitat Birds--Identification Birds--Migration Birdsongs Parulidae | Warblers 1933-04-24 N/A
Walter Rosene letter to the United States Bureau of Biological Survey regarding bird observations from a trip to North Dakota, May 1, 1925 Correspondence Field notes Bird watching Birds--Migration Birds--Research Icteridae | Blackbirds, Orioles, Meadowlarks, and allies Anseriformes | Ducks, Geese, and Swans Laridae | Gulls and Terns Hirundinidae | Swallows Vireonidae | Vireos Troglodytidae | Wrens Emberizidae | Sparrows 1925-05-01 N/A
Walter Rosene letter to the United States Bureau of Biological Survey regarding a 1925 bird migration report, January 18, 1926 Correspondence Field notes Bird watching Birds--Migration Birds--Research Ornithology--Methodology Scolopacidae | Sandpipers, Phalaropes, and allies Vireonidae | Vireos Parulidae | Warblers Emberizidae | Sparrows 1926-01-18 N/A
Walter Rosene letter to the United States Bureau of Biological Survey regarding a 1924 bird migration report, February 7, 1925 Correspondence Bird watching Birds--Migration Birds--Research Ornithology--Methodology 1925-02-07 N/A
Walter Rosene letter to the United States Bureau of Biological Survey regarding a 1922 bird migration report, January 2, 1923 Correspondence Bird watching Birds--Migration Birds--Research 1923-01-02 N/A
Walter Rosene letter to Philip DuMont regarding Waterfowl Census, October 20, 1928 Correspondence Bird surveys Birds--Migration Charadriiformes | Shore-birds, Gulls, and Auks Water birds Emberizidae | Sparrows Presidents--United States--Election--1928 Families 1928-10-20 N/A
Walter Rosene letter to Philip DuMont regarding article writing, July 15, 1935 Correspondence Bird watching Birds--Migration Anseriformes | Ducks, Geese, and Swans Fowling 1935-07-15 N/A
Walter Rosene letter to Bureau of Biological Survey regarding birds sighted in 1926, January 11, 1927 Correspondence Bird watching Birds--Migration Wildlife rehabilitation 1927-01-11 N/A
Walter Rosene interview with WHO Radio Interviews Bird declines Bird populations Birds--Extinction Birds--Migration Extinct birds N/A N/A
Walter C. Henderson letter to Walter Rosene regarding information on the Golden Plover and a 1924 migration report, November 29, 1924 Correspondence Bird surveys Bird watching Birds--Migration 1924-11-29 N/A
W. Ross Silcock letter to Vernon M. Kleen regarding fall migration 1975, December 5, 1975 Correspondence Field notes Bird watching Birds--Migration Birds--Research 1975-12-05 N/A
Vernon M. Kleen letter to Peter C. Petersen regarding field notes from the 1960s, January 19, 1989 Correspondence Field notes Bird watching Birds--Migration Birds--Research Ornithology--Methodology 1989-01-19 N/A
Tim C. Moermond letter to Peter C. Petersen regarding field notes, winter 1963 Correspondence Field notes Bird watching Birds--Migration Birds--Research Ornithology--Methodology 1963-04-03 N/A
Tim C. Moermond and Mike Orthel letter to Peter C. Petersen regarding spring migration, May 28, 1963 Artifacts (object genre) Correspondence Field notes Bird watching Birds--Migration Birds--Research Ornithology--Methodology 1963-05-28 N/A
Tanya Bray letter and field report to Thomas H. Kent, November 29, 1982 Correspondence Field notes Bird declines Bird watching Birds--Habitat Birds--Migration Birds--Nests Birds--Research Ciconiiformes | Herons, Bitterns, Egrets, Ibises, and Storks Ornithology--Methodology Charadriiformes | Shore-birds, Gulls, and Auks Vireonidae | Vireos Parulidae | Warblers 1982-11-29 N/A
Summer 1983 report Field notes Bird watching Birds--Migration Charadriiformes | Shore-birds, Gulls, and Auks Parulidae | Warblers Water birds Weather 1983-06-01 1983-07-31
Summary of Bird Banding Reports Bird banding Bird watching Birds--Migration Ornithology--Methodology Strigiformes | Owls 1937-04-01 1937-04-30
Spring report Field notes Bird watching Birds--Migration Weather 1981-05-25 N/A
Spring migration, March 1-May 24, 1984, contributed by Peter C. Petersen Field notes Bird watching Birds--Migration Birds--Nests 1984-03-01 1984-03-24
Spring migration, Iowa, 1972 Field notes Bird watching Birds--Migration Feathers 1972-03-01 1972-05-31