Title Genres Topics Date (Start) Date (End)
Mark Widrlechner letter to Boone County Bird Count Participants regarding the 1999 Christmas Bird Count results, January 9, 1999 Correspondence Field notes Bird surveys Bird watching Birds--Counting Ornithology--Methodology 1999-01-09 N/A
Mark Widrlechner letter to Hank Zaletel regarding the Boone County Christmas Bird Count Correspondence Bird surveys Bird watching Birds--Counting Ornithology--Methodology 1996-01-01 1996-12-31
Erik Munson letter to the members of Big Bluestem Audubon Society regarding the Boone County Christmas Bird Count Correspondence Bird surveys Bird watching Birds--Counting 1990-01-01 1990-12-31
Mark Orsag email to Thomas Kent regarding Hitchcock Nature Area Hawkwatch, December 20, 1999 Correspondence Field notes Bird surveys Bird watching Birds of prey Birds--Counting 1999-12-20 N/A
Robert I. Cecil letter to James J. Dinsmore regarding bird sightings July 31, 1986 Checklists Correspondence Field notes Bird watching Birds--Counting Birdsongs 1986-07-31 N/A
Burt Gresham letter to Philip DuMont regarding Goose migration, April 9, 1938 Correspondence Field notes Surveys (documents) Bird watching Birds--Counting Birds--Migration 1938-04-09 N/A
Philip DuMont letter to Burt Gresham regarding Goose migration, April 4, 1938 Correspondence Field notes Bird watching Birds--Counting Birds--Migration 1938-04-04 N/A
Philip DuMont telegram to Burt Gresham regarding Goose migration, March 1938 Correspondence Field notes Bird watching Birds--Counting Birds--Migration 1938-03-01 1938-03-31
Philip DuMont telegram to Burt Gresham regarding Goose migration, March 18, 1938 Correspondence Field notes Bird watching Birds--Counting Birds--Migration 1938-03-18 N/A
Philip DuMont telegram to Burt Gresham regarding Goose migration Correspondence Field notes Bird watching Birds--Counting Birds--Migration 1936-03-01 1936-05-31
Burt Gresham letter to Philip DuMont regarding Goose migration, April 14, 1933 Correspondence Bird watching Birds--Counting Birds--Migration 1933-04-14 N/A
Philip DuMont telegram to Burt Gresham regarding Goose migration, Spring 1933 Correspondence Field notes Bird watching Birds--Counting Birds--Migration 1933-03-01 1933-05-31
Field notes and Peter C. Petersen letter to James J. Dinsmore, July 28, 1986 Correspondence Field notes Bird feeders Bird watching Birds--Counting Birds--Food Birds--Identification Birds--Nests Birds--Infancy 1986-07-28 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
Eloise Armstrong and Dennis Thompson letter to James J. Dinsmore regarding bird sightings Correspondence Field notes Bird watching Birds--Counting 1986-06-01 1986-07-31
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
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
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
W. Ross Silcock letter to Thomas H. Kent regarding bird sightings, August 2, 1980 Correspondence Field notes Bird watching Birds--Counting Birds--Nests Birdsongs 1980-08-02 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
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
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
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
Richard Jule Hollis letter to Thomas H. Kent regarding Cliff Swallows, August 14, 1980 Correspondence Reports Birds--Counting Birds--Eggs Birds--Nests 1980-08-14 N/A
Tanya Bray letter to Thomas H. Kent regarding bird sightings, July 29, 1980 Correspondence Field notes Forms (documents) Bird watching Birds--Counting Anseriformes | Ducks, Geese, and Swans Laridae | Gulls and Terns Scolopacidae | Sandpipers, Phalaropes, and allies Parulidae | Warblers Weather 1980-07-29 N/A