Title Genres Topics Date (Start) Date (End)
Darwin Koenig letter to Thomas H. Kent regarding bird sightings, November 30, 1979 Correspondence Field notes Bird watching 1979-11-30 N/A
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 field notes, December 1, 1981 Correspondence Field notes Bird watching Birds--Research Ornithology--Methodology 1981-12-01 N/A
Darwin Koenig letter to Thomas H. Kent regarding included field notes, August 1, 1979 Correspondence Field notes Bird watching Birds--Research 1979-08-01 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
Darwin Koenig letter to Thomas H. Kent regarding winter birds sighted, February 24, 1984 Correspondence Field notes Bird watching 1984-02-24 N/A
Darwin Koenig letter to Thomas Kent regarding bird sightings, December 3, 1980 Correspondence Field notes Bird watching 1980-12-03 N/A
Darwin Koenig letter to Thomas Kent regarding observations for spring, June 2, 1981 Correspondence Field notes Bird watching Charadriiformes | Shore-birds, Gulls, and Auks Water birds 1981-02-06 N/A
Darwin Koenig letter to Thomas Kent regarding observations for winter, March 1, 1981 Correspondence Field notes Bird watching 1981-03-01 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 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 A. Newhouse letter to Thomas Kent regarding Fall birds sighted, November 24, 1980 Correspondence Field notes Bird banding Bird watching Scolopacidae | Sandpipers, Phalaropes, and allies 1980-11-24 N/A
David A. Newhouse letter to Thomas Kent regarding winter bird sightings, February 24, 1981 Correspondence Field notes Bird watching 1981-02-24 N/A
David C. Edwards email response to James J. Dinsmore regarding a possible Great-tailed Grackle sighting, July 23, 1997 Correspondence Field notes Bird watching Birds--Identification 1997-07-23 N/A
David C. Edwards email to James J. Dinsmore regarding a possible Great-tailed Grackle sighting, July 7, 1997 Correspondence Field notes Bird watching Birds--Identification 1997-07-07 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 Dankert note to Jim Dinsmore regarding additional sighting, summer 1995 Correspondence Field notes Bird watching 1995-06-01 1995-07-31
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
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
David Newhouse letter to Thomas Kent regarding spring, May 27, 1981 Correspondence Field notes Bird watching Birds--Identification Birdsongs Photography of birds 1981-05-27 N/A
Dean Dalziel letter to Richard Bishop regarding unusual bird sighting, July 7, 1980 Correspondence Field notes Bird watching Birds--Infancy 1980-07-07 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 James J. Dinsmore regarding nesting of Purple Martins and Eastern Bluebirds, July 24, 1984 Correspondence Field notes Birds--Nests Weather 1984-07-24 N/A