Title Genres Topics Date (Start) Date (End)
Dick Bierman letter to Nicholas S. Halmi regarding bird sightings, February 11, 1978 Correspondence Field notes Bird watching Birds--Research 1978-02-11 N/A
Dick Bierman letter to Nicholas S. Halmi regarding bird sightings, November 29, 1977 Correspondence Field notes Bird watching Birdsongs Birds--Infancy 1977-11-29 N/A
Dick Bierman letter to Nicholas S. Halmi regarding spring bird sightings, May 28, 1979 Correspondence Field notes Reports Bird watching Birds--Migration Birds--Nests Anseriformes | Ducks, Geese, and Swans Gaviiformes | Loons Rare birds Parulidae | Warblers 1979-05-28 N/A
Dick Bierman letter to Nicholas S. Halmi regarding winter bird sightings, February 6, 1979 Correspondence Field notes Bird watching Birds--Research Columbiformes | Doves and Pigeons Accipitridae | Hawks and Eagles Phasianidae | Pheasants, Turkeys, and Grouse 1979-02-06 N/A
Dick Bierman letter to Thomas H. Kent regarding bird sightings in northwest, Iowa, February 5, 1980 Correspondence Field notes Bird watching Birds--Research Ornithology--Methodology 1979-12-01 1980-02-28
Dick Bierman letter to Thomas H. Kent regarding bird sightings, November 28, 1979 Correspondence Field notes Bird watching 1979-11-28 N/A
Dick Bierman letter to Thomas H. Kent regarding Swainson's Hawk sightings, April 20, 1992 Correspondence Field notes Bird watching Birds--Food Weather 1992-04-20 N/A
Dick Bierman letter to Thomas Kent regarding fall field report for 1980, December 3, 1980 Correspondence Field notes Bird watching Birds--Migration 1980-12-03 N/A
Dixie Kanago letter to Robert K. Myers regarding Common Redpoll and Red Crossbill sightings, May 2, 1988 Correspondence Field notes Bird feeders Bird watching 1988-05-02 N/A
Documents regarding a Wood Duck study, 1963 Correspondence Questionnaires Bird surveys Bird watching Birds--Nests Birds--Research Ornithology--Methodology Ducklings 1963-01-01 1963-12-31
Documents regarding a Wood Duck study, February 27, 1964 Checklists Correspondence Questionnaires Bird surveys Bird watchers Birds--Nests Birds--Research Ornithology--Methodology Predatory animals Ducks--Counting Ducklings 1964-02-27 N/A
Don Joffray letter to Frederic Leopold regarding Wood Duck houses and nest takeover and predation, April 20, 1966 Correspondence Birds--Eggs Birds--Nests Birdhouses--Design and construction Predatory animals Squirrels--Behavior Raccoon--Behavior 1966-04-20 N/A
Donald Gillaspey letter to Thomas Kent regarding bird sightings, fall 1994 Correspondence Field notes Bird watching Birds--Behavior Birds--Identification Birds--Nests Birdsongs Birds--Infancy 1994-08-01 1994-11-30
Donald J. Gillaspey letter to Nicholas S. Halmi regarding bird sightings, December 1, 1978 Correspondence Field notes Bird populations Bird watching Ciconiiformes | Herons, Bitterns, Egrets, Ibises, and Storks 1978-12-01 N/A
Dorothy A. Brunner letter to Nicholas S. Halmi regarding bird sightings, February 13, 1978 Correspondence Field notes Bird watching Birds--Research 1978-02-13 N/A
Dorothy A. Brunner letter to Thomas H. Kent regarding bird sightings, February 21, 1980 Correspondence Field notes Bird watching Birds--Research Ornithology--Methodology 1980-02-21 N/A
Dorothy A. Brunner letter to Thomas H. Kent regarding bird sightings, May 28, 1980 Correspondence Field notes Bird watching Birds--Nests Birds--Research Accipitridae | Hawks and Eagles Ornithology--Methodology Hirundinidae | Swallows Turdidae | Thrushes Vireonidae | Vireos Parulidae | Warblers 1980-05-28 N/A
Dorothy Aldrich letter to James J. Dinsmore regarding White-winged Crossbill and Sandhill Crane sightings, April 17, 1996 Correspondence Field notes Bird feeders Bird watching Birds--Identification 1996-04-17 N/A
Dorothy Clayton Pohl letter regarding house finch sightings, July 23, 1986 Correspondence Field notes Bird watching Birdhouses 1986-07-23 N/A
Dorothy Franek letter to Frances Braley regarding her activities with birds, January 17, 1969 Correspondence Maps (documents) Bird banding Bird watching Birds--Habitat Birds--Identification 1969-01-17 N/A
Dorothy Franek letter to Peter C. Petersen regarding bird sightings records, January 18, 1969 Correspondence Bird watching 1969-01-18 N/A
Dorothy Franek letter to Peter C. Peterson regarding her first winter bird population study, March 10, 1969 Correspondence Bird watching Birds--Identification Ornithology--Methodology Weather 1969-01-01 1969-03-31
Dorothy Parker letter to Thomas H. Kent regarding rare bird sighting of a White-Winged Crossbill, August 6, 1979 Correspondence Bird watchers Bird watching Birds--Identification Birds--Research Rare birds Country life 1979-08-06 N/A
Dorothy Parker's letter regarding bird sighting, July 24, 1979 Correspondence Field notes Bird watching 1979-07-24 N/A
Doug Harr letter to Jim Dinsmore regarding IOU observations, July 31, 1998 Correspondence Field notes Bird watching Birds--Nests Birds--Infancy Predatory animals Families 1998-07-31 N/A