Title Genres Topics Date (Start) Date (End)
Virginia Crocker letter to Gladys Black regarding the sighting of a Varied Thrush at Storm Lake, November 21, 1981 Correspondence Field notes Bird watching Birds--Behavior Birds--Identification Rare birds 1981-11-20 1981-11-21
Vivian Keerbs letter to Carl J. Bendorf regarding the sighting of a Pied-billed Grebe, fall 1986 Correspondence Field notes Bird watching Birds--Infancy 1986-08-01 1986-11-30
W. Ross Silcock letter to Carl J. Bendorf regarding bird sightings, November 25, 1988 Correspondence Field notes Bird watching Birds--Counting Birds--Identification Birds--Infancy 1988-11-25 N/A
W. Ross Silcock letter to Nicholas S. Halmi regarding bird sightings, November 30, 1977 Correspondence Field notes Bird watching Birds--Counting 1977-11-30 N/A
W. Ross Silcock letter to Nicholas S. Halmi regarding field notes, February 14, 1977 Correspondence Field notes Bird watching Birds--Counting Birds--Identification 1977-02-14 N/A
W. Ross Silcock letter to Nicholas S. Halmi regarding highlights of the Christmas bird count, January 30, 1977 Correspondence Field notes Bird watching Birds--Counting Birds--Research Ornithology--Methodology Fringillidae | Finches N/A N/A
W. Ross Silcock letter to Nicholas S. Halmi regarding winter bird sightings, February 28, 1979 Correspondence Field notes Bird watching Birds--Counting Birds--Research Fringillidae | Finches 1979-02-28 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
W. Ross Silcock letter to Thomas H. Kent regarding bird sightings, May 31, 1980 Correspondence Field notes Bird watching Birds--Breeding Birds--Counting Birds--Habitat Birdsongs Fringillidae | Finches 1980-05-31 N/A
W. Ross Silcock letter to Thomas H. Kent regarding questions about the Christmas bird count, February 28, 1989 Correspondence Bird watching Birds--Counting Birds--Research Ornithology--Methodology 1989-02-28 N/A
W. Ross Silcock letter to Thomas H. Kent regarding sightings at Folsom Lake Heronry, July 6, 1984 Correspondence Birds--Nests Ciconiiformes | Herons, Bitterns, Egrets, Ibises, and Storks 1984-07-06 N/A
W. Ross Silcock letter to Vernon M. Kleen regarding bird observations for winter 1975/1976, undated Correspondence Field notes Bird watching Birds--Counting Ornithology--Methodology N/A N/A
W. Ross Silcock letter to Vernon M. Kleen regarding fall migration 1975, December 5, 1975 Correspondence Field notes Bird watching Birds--Migration Birds--Research 1975-12-05 N/A
W. Ross Silcock letter to Vernon M. Kleen regarding spring bird observations in Fremont County, July 11, 1975 Correspondence Field notes Bird watching Birds--Research Ornithology--Methodology 1975-07-11 N/A
Wade Guenther letter to Philip DuMont regarding the Giddings collection, April 20, 1933 Correspondence Zoological specimens 1933-04-20 N/A
Wallace E. Jardine letter to Thomas H. Kent regarding bird sightings around Pocahontas, Iowa, February 12, 1984 Correspondence Field notes Bird watching 1984-02-12 N/A
Walter C. Henderson letter to Walter Rosene regarding a Duck Hawk shot near Ogden, October 21, 1921 Correspondence Bird watching Rare birds Birds--Mortality 1921-10-21 N/A
Walter C. Henderson letter to Walter Rosene regarding information on the Golden Plover and a 1924 migration report, November 29, 1924 Correspondence Bird surveys Bird watching Birds--Migration 1924-11-29 N/A
Walter Rosene enclosure sent to Bureau of Biological Survey with letter dated January 11, 1927 Correspondence Field notes Bird watching 1927-01-11 N/A
Walter Rosene letter to Bureau of Biological Survey regarding birds sighted in 1926, January 11, 1927 Correspondence Bird watching Birds--Migration Wildlife rehabilitation 1927-01-11 N/A
Walter Rosene letter to Philip DuMont regarding a recent outing and society memberships, October 27, 1927 Correspondence Bird watching Ornithology--Societies, etc Fowling Ornithological literature 1927-10-25 N/A
Walter Rosene letter to Philip DuMont regarding a single day record for bird sightings, May 15, 1933 Correspondence Bird watching Anseriformes | Ducks, Geese, and Swans Laridae | Gulls and Terns Parulidae | Warblers 1933-05-15 N/A
Walter Rosene letter to Philip DuMont regarding a visit with Janetta DuMont, April 20, 1929 Correspondence Bird watching Birds--Food Birdsongs Families 1929-04-20 N/A
Walter Rosene letter to Philip DuMont regarding article writing, July 15, 1935 Correspondence Bird watching Birds--Migration Anseriformes | Ducks, Geese, and Swans Fowling 1935-07-15 N/A
Walter Rosene letter to Philip DuMont regarding Barred Owl observations and Goose identification, April 11, 1928 Correspondence Bird watching Birds--Behavior Birds--Food Birds--Identification Birds--Nests Water birds 1928-04-11 N/A