Title Genres Topics Date (Start) Date (End)
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
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
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
Big Bluestem Audubon Society brochure and membership application Brochures Bird watching Ornithology--Societies, etc Wildlife conservation 2007-08-01 2007-08-31
Big Bluestem Flyer, Volume 22, Number 2, October 1987 Newsletters Bird watching Accipitridae | Hawks and Eagles Ornithology--Societies, etc Charadriiformes | Shore-birds, Gulls, and Auks Parulidae | Warblers Acid rain 1987-10-01 1987-10-31
Big Bluestem Flyer, Volume 22, Number 3, November 1987 Newsletters Bird watching Ornithology--Societies, etc Wildlife conservation Societies--History, organization, etc 1987-11-01 1987-11-30
Big Bluestem Flyer, Volume 22, Number 4, December 1987 Newsletters Bird surveys Bird watching Birds--Counting Ornithology--Societies, etc Strigiformes | Owls Acid rain 1987-12-01 1987-12-31
Big Bluestem Flyer, Volume 22, Number 6, February 1988 Newsletters Bird surveys Bird watchers Bird watching Birds--Counting Accipitridae | Hawks and Eagles Ornithology--Societies, etc Piciformes | Woodpeckers and allies Strigiformes | Owls 1988-02-01 1988-02-29
Big Bluestem Flyer, Volume 22, Number 7, March 1988 Newsletters Bird watching Local government and environmental policy Ornithology--Societies, etc Wildlife conservation 1988-03-01 1988-03-31
Big Bluestem Flyer, Volume 22, Number 8, April 1988 Newsletters Bird watching Ornithology--Societies, etc Wildlife conservation Waterfowl Societies--History, organization, etc 1988-04-01 1988-04-30
Big Bluestem Flyer, Volume 22, Number 9, May 1988 Newsletters Bird watching Ornithology--Societies, etc Wildlife conservation Parks--Iowa Societies--History, organization, etc 1988-05-01 1988-05-31
Big Bluestem Flyer, Volume 23, Number 1, September 1988 Newsletters Bird watching Ornithology--Societies, etc Wildlife conservation Acid rain 1988-09-01 1988-09-30
Big Bluestem Flyer, Volume 23, Number 2, October 1988 Newsletters Bird watching Anseriformes | Ducks, Geese, and Swans Accipitridae | Hawks and Eagles Ornithology--Societies, etc Ornithology--Study and teaching Charadriiformes | Shore-birds, Gulls, and Auks 1988-10-01 1988-10-31