Title Genres Topics Date (Start) Date (End)
Audubon field notes, winter 1970-1971, and Woodward H. Brown letter to Vernon M. Kleen regarding reporting practices, March 29, 1971 Correspondence Field notes Bird watching Ornithology--Periodicals Publishers and publishing 1970-12-01 1971-03-29
Darwin Koenig letter to James J. Dinsmore regarding summer bird sightings, July 31, 1997 Correspondence Field notes Bird watching Birds--Identification Birds--Nests Birdsongs 1997-07-31 N/A
Field report contributed by Thomas H. Kent, July 30, 1997 Field notes Reports Bird watching Birds--Counting Birds--Nests Birds--Infancy 1997-07-30 N/A
Gladys Black letter to Vernon M. Kleen regarding her sighting of Clark's Nutcracker, March 5, 1973 Correspondence Bird watching Birds--Research Ornithology--Methodology 1973-03-05 N/A
Woodward H. Brown letter to Nicholas S. Halmi regarding shorebirds and others seen after the Red Rock flood pool receded, May 25, 1973 Correspondence Field notes Bird watching Charadriiformes | Shore-birds, Gulls, and Auks Parulidae | Warblers Emberizidae | Sparrows 1973-05-25 N/A
Red Rock Lake, Red Rock Refuge, Iowa, spring 1973 Field notes Bird watching Birds--Nests Birds--Research Environmental monitoring 1973-03-01 1973-05-31
Gladys Black letter to Vernon M. Kleen regarding changes in habitat and birds sighted at the Red Rock Refuge and Pleasantville, Iowa area, August 15, 1973 Correspondence Field notes Bird watching Birds--Habitat Habitat (Ecology) 1973-08-15 N/A
Melba Wigg letter and report to Vernon M. Kleen regarding bird sightings in Pottawattamie and Mills Counties, Iowa, fall 1973 Correspondence Field notes Bird watching Rare birds 1973-12-07 N/A
Nicholas S. Halmi letters to Vernon M. Kleen regarding birds observed during summer and fall 1973. Correspondence Field notes Bird watching Birds--Identification Feathers Habitat (Ecology) Rare birds 1973-06-01 1973-11-30
Iowa Ornithologists' Union, Quarterly field report, fall 1973 Field notes Bird watching Birds--Migration Birds--Research Ornithology--Methodology 1973-08-01 1973-11-30
Lake Red Rock and Red Rock Refuge, fall migration, 1973 Field notes Bird watching Birds--Migration Birds--Research Ornithology--Methodology 1973-08-01 1973-11-30
Gladys Black letter to Vernon M. Kleen regarding shorebirds observed at Lake Red Rock, December 6, 1973 Correspondence Bird watching Charadriiformes | Shore-birds, Gulls, and Auks 1973-12-06 N/A
Lillian Serbousek letter to Lee Bush, regarding a Varied Thrush wintering in Cedar Rapids area in 1971, April 7, 1971 Correspondence Bird watching Rare birds 1971-04-07 N/A
Darwin Koenig letter to Woodward H. Brown regarding birds sighted, fall 1971 Correspondence Bird watching 1971-08-01 1971-11-30
Winter censuses, Ames, Iowa, January-March 1971 Field notes Charts (graphic documents) Bird watching Birds--Counting Birds--Migration 1971-01-16 1971-03-07
Report from Red Rock Refuge and Lake area, Pleasantville, Iowa, winter season, December 1970-March 1971 Field notes Bird watching Birds--Migration Anseriformes | Ducks, Geese, and Swans Weather 1970-12-01 1971-03-31
Gladys Black letter to Vernon M. Kleen regarding changes in habitat and birds sighted at Red Rock Refuge during 1968-1970, April 7, 1971 Correspondence Field notes Bird watching Birds--Habitat Birds--Nests 1971-04-07 N/A
Peter C. Petersen letter to Vernon M. Kleen regarding spring migration 1971, June 5, 1971 Correspondence Bird watching Birds--Migration Tyrannidae | Flycatchers 1971-06-05 N/A
Woodward H. Brown letter to Vernon M. Kleen regarding locations of bird sightings, June 10, 1971 Correspondence Bird watching 1971-06-10 N/A
Field notes for spring season 1971 Correspondence Field notes Bird watching 1971-03-01 1971-05-31
Spring migration 1971, Red Rock Refuge and Pleasantville area, Marion County, Iowa Field notes Bird watching Birds--Migration 1971-03-01 1971-05-31
Gladys Black letter to Vernon Kleen regarding activities of Iowa Ornithologists' Union members, April 24, 1971 Correspondence Bird watching Birds--Behavior Rare birds 1971-04-24 N/A
Field notes for summer season 1971 Correspondence Field notes Bird watching Vireonidae | Vireos 1971-06-01 1971-07-31
Nesting season 1971, Pleasantville, Marion County, Iowa and Red Rock Refuge Field notes Bird watching Birds--Nests 1971-06-01 1971-07-31
Peter C. Peterson letter to Woodward H. Brown, regarding fall migration 1971, November 14, 1971 Correspondence Bird banding Bird watching Birds--Migration 1971-11-14 N/A