Title Genres Topics Date (Start) Date (End)
Barbara L. Wilson letter to Thomas H. Kent regarding field notes, November 25, 1982 Correspondence Field notes Bird declines Bird watching Birds--Counting Birds--Migration Birds--Nests Phasianidae | Pheasants, Turkeys, and Grouse Weather 1982-11-25 N/A
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 James J. Dinsmore regarding bird sightings, August 2, 1991 Correspondence Field notes Bird watching Birds--Nests Birdsongs Weather 1991-08-02 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
Betty Walters letter to Thomas H. Kent regarding bird sightings, August 13, 1980 Correspondence Field notes Bird banding Bird watching Birds--Migration Birdsongs Fringillidae | Finches Songbirds 1980-08-13 N/A
Bruce Ehresman letter to James J. Dinsmore regarding bird sightings, August 4, 1988 Correspondence Field notes Bird watching Birds--Identification Birds--Research Birds--Infancy 1988-08-04 N/A
Carl J. Bendorf letter to Robert K. Myers regarding his sighting of a Curlew Sandpiper, May 18, 1988 Correspondence Field notes Bird watching 1988-05-18 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
Curtis E. Krieger letter to Nicholas S. Halmi regarding his sighting of a Northern Shrike, November 22, 1977 Correspondence Field notes Bird watching 1977-11-22 N/A
Dale Stone letter to James J. Dinsmore regarding Upland Sandpiper sightings, August 3, 1988 Correspondence Field notes Bird watching Birds--Infancy 1988-08-03 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 30, 1985 Correspondence Field notes Bird watching Birds--Nests Parulidae | Warblers Birds--Infancy 1985-07-30 N/A
Darwin Koenig letter to James J. Dinsmore regarding bird sightings, August 1, 1988 Correspondence Field notes Bird watching Birds--Nests Birdsongs Birds--Infancy Birds--Feeding and feeds 1988-08-01 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 Lee A. Schoenewe regarding bird sightings, November 27, 1995 Correspondence Field notes Bird watching Birds--Identification Birdsongs 1995-11-27 N/A
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
Darwin Koenig letter to Thomas H. Kent regarding bird sightings, May 28, 1980 Correspondence Field notes Bird watching Birds--Nests Birds--Research Ornithology--Methodology 1980-05-28 N/A
Darwin Koenig letter to Thomas H. Kent regarding bird sightings, November 30, 1979 Correspondence Field notes Bird watching 1979-11-30 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
David A. Newhouse letter to Thomas H. Kent regarding bird sightings, May 27, 1980 Correspondence Field notes Bird banding Bird watching Birds--Migration Anseriformes | Ducks, Geese, and Swans Accipitridae | Hawks and Eagles Ciconiiformes | Herons, Bitterns, Egrets, Ibises, and Storks Fringillidae | Finches Parulidae | Warblers 1980-05-27 N/A
David J. Conrads letter to Carl J. Bendorf regarding bird sightings, fall 1988 Correspondence Field notes Bird watching Birds--Identification Birdsongs Birds--Infancy 1988-08-01 1988-11-30