Title Genres Topics Date (Start) Date (End)
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 Kent regarding bird sightings, May 31, 1995 Field notes Bird watching Birdsongs Charadriiformes | Shore-birds, Gulls, and Auks 1995-05-31 N/A
Bery Engebretsen letter to Thomas Kent regarding spring reports, June 2, 1993 Field notes Bird watching Birds--Identification Birdsongs Weather 1993-06-02 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
Big Bluestem Flyer, Volume 23, Number 4, December 1988 Newsletters Bird surveys Bird watching Birds--Counting Birdsongs Ornithology--Societies, etc Acid rain 1988-12-01 1988-12-31
Birdwatching notes compiled by Woodward Hart Brown, 1946-1980 Field notes Bird watching Birds--Eggs Birds--Identification Birds--Nests Birdsongs Weather 1946-02-10 1980-02-29
Carl J. Bendorf letter to James J. Dinsmore regarding the Birdline answering machine and a sighting of a House Finch, July 30, 1987 Correspondence Field notes Bird watching Birdsongs Ornithology--Societies, etc 1987-07-30 N/A
Carl J. Bendorf letter to Nicholas S. Halmi regarding the sighting of a Lincoln Sparrow, July 16, 1978 Correspondence Field notes Bird watching Birds--Identification Birdsongs Songbirds 1978-07-16 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
Daily field checking list by Walter Rosene, May 5, 1941 Checklists Field notes Bird watching Birdsongs Weather 1941-05-05 N/A
Daily field checking list, Walter Rosene, June 4, 1933 second trip Checklists Field notes Bird watching Birds--Eggs Birds--Nests Birdsongs Photography of birds Birds--Infancy 1933-06-04 N/A
Daily field checking list, Walter Rosene, May 11, 1932 Checklists Field notes Bird watching Birds--Nests Birdsongs 1932-05-11 N/A
Daily field checking list, Walter Rosene, May 12, 1932 Checklists Field notes Bird watching Birds--Nests Birdsongs 1932-05-12 N/A
Daily field checking list, Walter Rosene, May 13, 1936 Checklists Field notes Bird watching Birds--Identification Birdsongs 1936-05-13 N/A
Daily field checking list, Walter Rosene, May 28, 1933 Checklists Field notes Bird watching Birds--Eggs Birds--Nests Birdsongs 1933-05-28 N/A
Daily field checking list, Walter Rosene, May 7, 1933 Checklists Field notes Bird watching Birdsongs 1933-05-07 N/A
Dale Stone letter to Thomas Kent regarding fall field reports, November 18, 1994 Correspondence Field notes Bird watching Birds--Identification Birdsongs 1994-11-18 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 summer bird sightings, July 31, 1997 Correspondence Field notes Bird watching Birds--Identification Birds--Nests Birdsongs 1997-07-31 N/A
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
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 Mosman letter to Thomas H. Kent regarding bird sightings, July 29, 1980 Correspondence Field notes Bird populations Bird watching Birds--Nests Birdsongs Weather 1980-07-29 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
Documentation form for extraordinary bird sightings in Iowa, MacGillivray's Warbler, June 2, 1995, Mark Proescholdt Field notes Forms (documents) Bird watching Birds--Identification Birdsongs Rare birds 1995-06-02 N/A