Title Genres Topics Date (Start) Date (End)
Bery Engebretsen letter to Carl J. Bendorf regarding bird sightings, December 1, 1988 Correspondence Field notes Bird watching Birds--Counting Birds--Identification Weather 1988-12-01 N/A
Bery Engebretsen letter to Robert K. Myers regarding bird sightings, May 29, 1988 Correspondence Field notes Bird watching Birds--Counting Birdsongs Anseriformes | Ducks, Geese, and Swans 1988-05-29 N/A
Bery Engebretsen letter to Thomas H. Kent regarding bird sightings, December 2, 1995 Correspondence Field notes Bird feeders Bird watching Birds--Counting Birds--Identification Birds--Infancy 1995-12-02 N/A
Charlotte Scott letter to Thomas H. Kent regarding bird sightings, September 12, 1980 Correspondence Field notes Bird watching Birds--Counting Birds--Nests Ciconiiformes | Herons, Bitterns, Egrets, Ibises, and Storks Charadriiformes | Shore-birds, Gulls, and Auks Songbirds Birds--Feeding and feeds 1980-09-12 N/A
Clarice Watson letter to Vernon M. Kleen regarding bird sightings, July 12, 1980 Correspondence Field notes Bird watching Birds--Counting Birds--Nests Birdsongs Birds--Infancy Birds--Feeding and feeds 1980-07-12 N/A
Dale Stone letter to Robert K. Myers regarding bird sightings, April 4, 1987 Correspondence Field notes Bird watching Birds--Counting Birds--Identification 1987-04-04 N/A
Darwin Koenig letter to James J. Dinsmore regarding bird sightings, July 29, 2003 Correspondence Field notes Bird watching Birds--Counting Birds--Identification 2003-07-29 N/A
Darwin Koenig letter to James J. Dinsmore regarding bird sightings, summer 2004 Correspondence Field notes Bird watching Birds--Counting Birds--Nests Falconiformes | Hawks, Eagles, Falcons, Osprey, and Vultures Parulidae | Warblers Birds--Infancy 2004-06-01 2004-07-31
Darwin Koenig letter to Nicholas S. Halmi regarding bird sightings, fall 1977 Correspondence Field notes Bird watching Birds--Counting 1977-08-01 1977-11-30
Darwin Koenig letter to Thomas H. Kent regarding bird sightings, July 30, 1980 Correspondence Field notes Bird watching Birds--Counting Birds--Research 1980-07-30 N/A
David A. Newhouse letter to Thomas H. Kent regarding bird sightings, August 11, 1980 Correspondence Field notes Forms (documents) Bird populations Bird watching Birds--Counting Birds--Nests 1980-08-11 N/A
Dean Mosman letter to Nicholas S. Halmi regarding bird sightings, November 27, 1977 Correspondence Field notes Bird banding Bird watching Birds--Counting Birds--Identification 1977-11-27 N/A
Dean Mosman letter to Thomas H. Kent regarding bird sightings, June 3, 1980 Correspondence Field notes Bird watching Birds--Counting Vireonidae | Vireos 1980-06-03 N/A
Erik Munson letter to Robert K. Myers regarding bird sightings, spring 1988 Correspondence Field notes Bird watching Birds--Counting Birds--Identification Birds--Nests Birds--Infancy 1988-03-01 1988-05-31
Francis L. Moore letter to Thomas H. Kent regarding bird sightings, July 31, 1980 Correspondence Field notes Forms (documents) Bird populations Bird watching Birds--Counting Birds--Nests Birdsongs Songbirds 1980-07-31 N/A
Francis L. Moore letter to Thomas H. Kent regarding bird sightings, May 30, 1980 Correspondence Field notes Bird watching Birds--Counting Birds--Nests Birdsongs Laridae | Gulls and Terns Accipitridae | Hawks and Eagles Phasianidae | Pheasants, Turkeys, and Grouse Laniidae | Shrikes Fringillidae | Finches Vireonidae | Vireos Parulidae | Warblers Bombycillidae | Waxwings Birds--Feeding and feeds 1980-05-30 N/A
Gary D. Wymore letter to Nicholas S. Halmi regarding bird sightings, September 6, 1977 Correspondence Field notes Bird watching Birds--Counting Birds--Identification 1977-09-06 N/A
Gladys Black letter to Nicholas S. Halmi regarding the large population of Evening Grosbeak's, November 16, 1977 Correspondence Field notes Bird feeders Bird populations Bird watching Birds--Counting Birds--Food Birds--Research 1977-11-16 N/A
Gladys Black letter to Thomas H. Kent regarding bird sightings, July 30, 1980 Correspondence Field notes Bird watching Birds--Counting Birds--Nests Fringillidae | Finches Troglodytidae | Wrens Songbirds 1980-07-30 N/A
Ione Getscher letter to Carl J. Bendorf regarding bird sightings, September 19, 1988 Correspondence Field notes Bird watching Birds--Counting Birdsongs Birds--Infancy 1988-09-19 N/A
James J. Dinsmore letter to Thomas H. Kent regarding bird sightings, spring 1997 Correspondence Field notes Bird watching Birds--Counting Birds--Identification 1997-03-01 1997-05-31
Field notes contributed by James L. Hansen, Clear Lake, Iowa, spring 1984, updated June 16, 1984 Correspondence Field notes Bird watching Birds--Counting 1984-06-16 N/A
Field reports form, contributed by James P. Sandrock, spring 1985 Correspondence Field notes Forms (documents) Animal migration--Climatic factors Bird watching Birds--Counting Weather 1985-03-01 1985-05-31
John Van Dyk letter to Robert K. Myers regarding bird sightings, May 27, 1988 Correspondence Field notes Bird watching Birds--Counting Birdsongs Parulidae | Warblers Emberizidae | Sparrows 1988-05-27 N/A
John Van Dyk letter to Thomas H. Kent regarding bird sightings, August 24, 1980 Correspondence Field notes Bird watching Birds--Counting Birds--Nests Weather 1980-08-24 N/A