Title Genres Topics Date (Start) Date (End)
Bery Engebretsen letter to James J. Dinsmore regarding summer bird sightings, August 20, 1987 Correspondence Field notes Bird watching Birdsongs Birds--Research Parulidae | Warblers 1987-08-20 N/A
Bery Engebretsen letter to James J. Dinsmore regarding summer bird sightings, summer 1997 Correspondence Field notes Bird watching Anseriformes | Ducks, Geese, and Swans Scolopacidae | Sandpipers, Phalaropes, and allies Parulidae | Warblers 1997-06-01 1997-07-31
Bery Engebretsen letter to Jim Dinsmore regarding summer bird sightings, August 1, 1995 Correspondence Field notes Bird watching Charadriiformes | Shore-birds, Gulls, and Auks 1995-08-01 N/A
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 Ross Silcock regarding bird sightings during winter 1991, February 24, 1992 Correspondence Field notes Bird watching Birds--Identification Rare birds Waterfowl 1992-02-24 N/A
Bery Engebretsen letter to Thomas H. Kent regarding bird sightings, December 2, 1995 Correspondence Field notes Bird feeders Bird watching Birds--Counting Birds--Identification Birds--Infancy 1995-12-02 N/A
Bery Engebretsen letter to Thomas H. Kent regarding fall bird sightings, December 4, 1992 Correspondence Field notes Bird declines Bird watching Birds--Counting Anseriformes | Ducks, Geese, and Swans Laridae | Gulls and Terns Scolopacidae | Sandpipers, Phalaropes, and allies 1992-12-04 N/A
Bery Engebretsen letter to Thomas H. Kent regarding fall bird sightings, December 5, 1998 Correspondence Field notes Bird banding Bird watching Birds--Counting 1998-12-05 N/A
Bery Engebretsen letter to Thomas H. Kent regarding fall bird sightings, December 6, 1993 Correspondence Field notes Bird watching Birds--Counting Birds--Identification 1993-12-06 N/A
Bery Engebretsen letter to Thomas H. Kent regarding fall bird sightings, November 30, 1997 Correspondence Field notes Bird watching Birds--Counting Birds--Infancy 1997-11-30 N/A
Beth Proescholdt letter to Thomas H. Kent regarding a correction to a previous report, April 22, 1992 Correspondence Field notes Bird watching Birds--Counting 1992-04-22 N/A
Beth Proescholdt letter to Thomas H. Kent regarding field notes, May 13, 1982 Correspondence Field notes Bird watching 1982-05-13 N/A
Beth Proescholdt letter to Thomas H. Kent regarding record Hawk counts, December 1, 1998. Correspondence Field notes Bird watching Birds--Counting Falconiformes | Hawks, Eagles, Falcons, Osprey, and Vultures Ornithology--Methodology 1998-12-01 N/A
Betty Walters letter to Nicholas S. Halmi regarding bird sightings, February 14, 1977 Correspondence Field notes Bird watching Fringillidae | Finches 1977-02-14 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
Bill and Marjorie Heusinkveld letter to Thomas H. Kent regarding field notes and accompanying documentation, March 4, 1982 Correspondence Field notes Bird watching Birds--Identification Rare birds 1982-03-04 N/A
Bill Clark letter to the Union Slough Refuge Manager regarding an early sighting of a Red-breasted Nuthatch, September 15, 1980 Correspondence Field notes Bird watching Birds--Identification Wildlife managers 1980-09-15 N/A
Bill Clark letter to Thomas Kent regarding additional details about his bird sightings in Iowa, October 23, 1980 Correspondence Field notes Bird watching Birds--Identification Troglodytidae | Wrens 1980-10-23 N/A
Bill Heusinkveld and Marjorie Heusinkveld letter to Thomas H. Kent regarding field notes, December 3, 1981 Correspondence Field notes Bird watching Birds--Research Accipitridae | Hawks and Eagles Ornithology--Methodology 1981-12-03 N/A
Bill Youngworth letter to Woodward Hart Brown regarding a new editor for Iowa Bird Life, January 10, 1961 Correspondence Bird watching Ornithology--Periodicals Periodical editors 1961-01-10 N/A
Bill Youngworth letter to Woodward Hart Brown regarding Blue-winged Warbler range, December 8, 1962 Correspondence Bird watching Birds--Geographical distribution Birds--Nests 1962-12-08 N/A
Bill Youngworth letter to Woodward Hart Brown regarding dubious Christmas census reports, May 25, 1954 Correspondence Bird watching Birds--Counting Birds--Geographical distribution Winter Zoological specimens 1954-05-25 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
Birding areas of Iowa: the unglaciated northeast Correspondence Maps (documents) Drafts (documents) Articles Bird watching Birding sites Falconiformes | Hawks, Eagles, Falcons, Osprey, and Vultures Scolopacidae | Sandpipers, Phalaropes, and allies Piciformes | Woodpeckers and allies 1974-05-13 N/A
Bob Barratt letter to Dean M. Roosa regarding a Goshawk sighting, fall 1982 Correspondence Field notes Bird watching 1982-08-01 1982-11-30