Title Genres Topics Date (Start) Date (End)
Letter from Peter Petersen to Nicholas Halmi regarding bird sightings, August 23, 1976 Correspondence Field notes Bird watching Birds--Research Ornithology--Methodology Parulidae | Warblers 0976-08-23 N/A
Letter from Darwin Koenig to Nicholas Halmi regarding bird sightings, August 22, 1976 Correspondence Field notes Bird watching Charadriiformes | Shore-birds, Gulls, and Auks Parulidae | Warblers 1976-08-22 N/A
Darwin Koenig letter to Nicholas S. Halmi regarding fall migration, 1976 Correspondence Field notes Bird watching Birds--Research Charadriiformes | Shore-birds, Gulls, and Auks Parulidae | Warblers 1976-08-22 N/A
Dean Mosman letter to Nicholas S. Halmi regarding fall migration, 1976 Correspondence Field notes Bird banding Bird populations Bird watching Radio and television tower bird strikes Parulidae | Warblers 1976-08-01 1976-11-30
Fall report, Fremont County, Iowa and nearby areas Correspondence Field notes Bird watching Birds--Migration Fringillidae | Finches Parulidae | Warblers Water birds 1976-08-01 1976-11-30
Audubon field notes for spring 1967 contributed by Frederick W. Kent Clippings (information artifacts) Correspondence Field notes Bird watchers Bird watching Birds--Migration Birds--Research Parulidae | Warblers 1967-03-01 1967-05-31
Pearl Knoop letter to Peter C. Petersen regarding Marble Rock, Iowa spring migration, June 10, 1965 Correspondence Field notes Bird watching Birds--Migration Fringillidae | Finches Parulidae | Warblers 1965-06-10 N/A
Letter to members of the Iowa Ornithologists' Union regarding the fall bird movement in Iowa Correspondence Bird watchers Birds--Identification Ornithology--Societies, etc Parulidae | Warblers N/A N/A
Observations and data on various birds, part 3 of 3, Woodward Hart Brown Correspondence Field notes Research notes Bird watching Birds--Nests Icteridae | Blackbirds, Orioles, Meadowlarks, and allies Fringillidae | Finches Thraupidae | Tanagers Vireonidae | Vireos Parulidae | Warblers N/A N/A
Bill Youngworth letter to Woodward Hart Brown regarding general bird notes, May 17, 1963 Correspondence Bird kills Bird watching Tyrannidae | Flycatchers Ornithology--Periodicals Parulidae | Warblers Periodical editors 1963-05-17 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