Title Genres Topics Date (Start) Date (End)
Bery Engebretsen letter to Carl J. Bendorf regarding bird sightings, December 1, 1988 Correspondence Field notes Bird watching Birds--Counting Birds--Identification Weather 1988-12-01 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 6, 1993 Correspondence Field notes Bird watching Birds--Counting Birds--Identification 1993-12-06 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 Michael C. Newlon regarding a Northern Shrike sighting, December 1, 1984 Correspondence Field notes Birds--Identification Ornithology--Societies, etc Ornithology--Technique Rare birds 1984-12-01 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 Ohde letter to Jim Dinsmore regarding a Berwick's Wren, March 20, 1984 Correspondence Field notes Birds--Behavior Birds--Identification Rare birds 1984-03-20 N/A
Bird sighting checklist, fall 1979 Checklists Field notes Bird populations Bird watching Birds--Identification 1979-08-01 1979-11-30
Bird sighting of Ospreys at Lake Red Rock contributed by Jon Stravers, winter, 1976-1977 Field notes Bird watching Birds--Behavior Birds--Identification Binoculars 1976-12-01 1977-02-28
Bird Sighting White-winged Crossbill, 1979 Field notes Birds--Identification Rare birds Zoological specimens 1979-07-24 N/A
Bird sightings checklist, winter 1978-1979 Checklists Field notes Bird watching Birds--Counting Birds--Identification Birds--Research 1978-12-01 1979-02-28
Birds reported to Birdline, but not reported to IBL Field notes Bird watching Birds--Identification 1991-03-01 1991-05-31
Birds reported to Dr. James Dinsmore by others (fide reports), fall 1984 Field notes Bird watching Birds--Identification 1984-08-01 1984-11-30
Birds: verifying documentation of an extraordinary sight record for Red-Necked Grebe, November 1, 1987 Field notes Forms (documents) Birds--Identification Rare birds 1987-11-01 N/A
Birds: verifying documentation of an extraordinary sight record for White-winged Scoter, October 1978 Field notes Bird watching Birds--Identification Rare birds Water birds 1978-10-24 N/A
Birds: verifying documentation of an extraordinary sight record submitted by Douglas Harr, March 17 1981 Field notes Forms (documents) Bird watching Birds--Identification Rare birds 1981-03-17 N/A
Birds: verifying documentation of an extraordinary sight record submitted by Gordon Brown, May 23 1981 Field notes Forms (documents) Bird watching Birds--Identification 1981-05-23 N/A
Birds: verifying documentation of an extraordinary sight record submitted by Raymond Cummins, April 5 1981 Field notes Forms (documents) Bird watching Birds--Identification Rare birds 1981-04-05 N/A
Birds: verifying documentation of an extraordinary sight record submitted by Raymond Cummins, May 8 1981 Field notes Forms (documents) Bird watching Birds--Identification Rare birds 1981-05-08 N/A
Birds: verifying documentation of an extraordinary sight record submitted by Richard Hollis, June 26, 1987 Field notes Forms (documents) Birds--Identification Ornithology Rare birds 1987-06-26 1987-06-28
Birds: verifying documentation of an extraordinary sight record submitted by Thomas H. Kent, April 17 1981 Field notes Forms (documents) Bird watching Birds--Identification Rare birds 1981-04-17 N/A
Birds: verifying documentation of an extraordinary sight record submitted by Thomas H. Kent, April 30 1981 Field notes Forms (documents) Bird watching Birds--Identification Rare birds 1981-04-30 N/A