Title Genres Topics Date (Start) Date (End)
Darwin Koenig letter to Thomas H. Kent regarding fall bird sightings, December 2, 1998 Correspondence Field notes Bird watching Birds--Counting 1998-12-02 N/A
Darwin Koenig letter to Thomas H. Kent regarding summer bird sightings, July 31, 1981 Correspondence Field notes Bird watching Birds--Counting Birds--Nests Birds--Research Ornithology--Methodology 1981-07-31 N/A
Darwin Koenig letter to Thomas H. Kent regarding winter bird sightings, March 4, 1983 Correspondence Field notes Bird watching Birds--Counting Birds--Research 1983-03-04 N/A
David A. Newhouse letter to Thomas H. Kent regarding summer bird sightings, July 25, 1981 Correspondence Field notes Bird watching Birds--Nests Birds--Research Ornithology--Methodology Phasianidae | Pheasants, Turkeys, and Grouse Water birds Weather 1981-07-25 N/A
David Dankert letter to Thomas Kent regarding Sandhill Crane sighting, May 31, 1994 Correspondence Field notes Bird watching 1994-05-31 N/A
David Ewert letter to Thomas H. Kent regarding a Cerulean Warbler sighting, May 23, 1983 Correspondence Field notes Bird watching Birds--Research Ornithology--Methodology 1983-05-23 N/A
Dean F. Stauffer letter to Nicholas S. Halmi regarding bird sightings, July 27, 1977 Correspondence Field notes Bird watching Birds--Research 1977-07-27 N/A
Dean Mosman letter to Vernon Kleen regarding hawks, April 8, 1976 Correspondence Field notes Bird watching Birds--Research Ornithology--Methodology 1976-04-08 N/A
Dean Mosman letter to Nicholas S. Halmi regarding bird sightings, Febuary 11, 1978 Correspondence Field notes Bird banding Bird feeders Bird watching Birds--Research 1978-02-11 N/A
Dean Mosman letter to Nicholas S. Halmi regarding bird sightings, June 1, 1978 Correspondence Field notes Bird watching Birds--Migration Birds--Research 1978-06-01 N/A
Dean Mosman letter to Nicholas S. Halmi regarding spring bird sightings, June 5, 1979 Correspondence Field notes Bird banding Bird watching 1979-06-05 N/A
Dean Mosman letter to Nicholas S. Halmi regarding winter bird sightings, February 10, 1979 Correspondence Field notes Bird banding Bird feeders Bird watching Birds--Research Fringillidae | Finches Weather 1979-02-10 N/A
Dean Mosman letter to Thomas H. Kent regarding summer bird sightings, July 29, 1981 Correspondence Field notes Bird declines Bird populations Bird watching Birds--Nests Birds--Research Ornithology--Methodology 1981-07-29 N/A
Letter from Dean Mosman to Vernon Kleen containing bird sighting notes, June 14, 1976 Correspondence Field notes Bird watching Birds--Migration Birds--Research Ornithology--Methodology 1976-06-14 N/A
Dennis E. Goemaat letter to Thomas H. Kent regarding Prothonotary Warbler sightings, August 19, 1987 Correspondence Field notes Bird watching Rare birds 1987-08-19 N/A
Dennis L. Carter letter to James J. Dinsmore regarding summer bird sightings, August 1, 2005 Correspondence Field notes Bird watching Birds--Counting Birds--Infancy 5005-08-01 N/A
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 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, November 28, 1979 Correspondence Field notes Bird watching 1979-11-28 N/A
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 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