Title Genres Topics Date (Start) Date (End)
Peter C. Petersen letter to Woodward H. Brown, regarding fall migration 1975, December 9, 1975 Correspondence Field notes Bird watching Birds--Counting Birds--Migration 1975-12-09 N/A
Iowa Ornithologists' Union, field report compiled data, Summer Tanager, 1975-1983 Field notes Bird watching Birds--Counting Birds--Research 1975-04-29 1983-07-04
Records Committee review for rare bird sighting for Ferruginous Hawk at Bremer County in 1974 Administrative records Clippings (information artifacts) Field notes Birds--Counting Birds--Identification Ornithology--Societies, etc Rare birds 1975-03-01 1994-02-03
Iowa Ornithologists' Union, Quarterly field report, and Council Bluffs field notes, winter 1974-1975 Correspondence Field notes Bird watching Birds--Counting Birds--Migration Fringillidae | Finches 1974-12-01 1975-02-28
Iowa Ornithologists' Union, field report compiled data, Clay-colored Sparrow, 1974-1983 Field notes Bird watching Birds--Counting Birds--Research 1974-07-15 1983-05-23
Robert Jessen letter to Vernon M. Kleen regarding birds sighted in Mahaska County during winter, April 2, 1974 Correspondence Field notes Bird banding Bird watching Birds--Counting Birds--Nests 1974-04-02 N/A
Iowa Ornithologists' Union, field report compiled data, Virginia Rail, 1973-1983 Field notes Bird watching Birds--Counting Birds--Research 1973-10-05 1983-05-21
Iowa Ornithologists' Union, field report compiled data, Ovenbird, 1973-1983 Field notes Bird watching Birds--Counting Birds--Research 1973-04-21 1983-07-05
Records Committee review for rare bird sighting for Ferruginous Hawk at Ames in 1972 Administrative records Clippings (information artifacts) Field notes Birds--Counting Birds--Identification Ornithology--Societies, etc Ornithology--Technique Rare birds 1972-12-17 1994-02-03
Iowa Ornithologists' Union, field report compiled data, Greater Yellowlegs, 1972-1983 Field notes Bird watchers Birds--Counting Birds--Research 1972-03-18 1983-07-31
Iowa Ornithologists' Union, field report compiled data, Northern Shoveler, 1972-1983 Field notes Bird watching Birds--Counting Birds--Research 1972-03-12 1983-06-06
Iowa Ornithologists' Union, field report compiled data, American Woodcock, 1971-1983 Field notes Bird watching Birds--Counting Birds--Eggs Birds--Nests Birdsongs Birds--Research Birds--Infancy 1971-11-11 1983-07-13
Iowa Ornithologists' Union, field report compiled data, House Wren, 1971-1982 Field notes Bird watching Birds--Counting Birds--Nests Birdsongs Birds--Research Birds--Infancy 1971-10-25 1982-10-10
Winter censuses, Ames, Iowa, January-March 1971 Field notes Charts (graphic documents) Bird watching Birds--Counting Birds--Migration 1971-01-16 1971-03-07
Iowa Ornithologists' Union, field report compiled data, Greater White-fronted Goose, 1970-1983 Field notes Bird watching Birds--Counting Birds--Research 1970-11-17 1983-05-04
Gladys Black letter to Peter C. Petersen regarding spring migration at Red Rock Refuge, June 12, 1970 Correspondence Field notes Bird watching Birds--Counting Birds--Migration Birds--Nests 1970-06-12 N/A
Iowa Ornithologists' Union, field report compiled data, Cliff Swallow, 1970-1983 Field notes Bird watching Birds--Counting Birds--Research 1970-04-18 1983-07-29
Iowa Ornithologists' Union, field report compiled data, Least Bittern, 1967-1983 Field notes Bird watching Birds--Counting Birds--Nests Birds--Research Birds--Infancy 1967-05-07 1983-07-22
Iowa Ornithologists' Union, field report compiled data, Common Yellowthroat, 1967-1982 Field notes Bird watching Birds--Counting Birds--Research 1967-04-24 1982-10-10
Iowa Ornithologists' Union, field report compiled data, Great Blue Heron, 1967-1983 Field notes Bird watching Birds--Counting Birds--Research 1967-02-04 1983-07-24
Iowa Ornithologists' Union, field report compiled data, Red Crossbill, 1966-1982 Field notes Bird watching Birds--Counting Birds--Research 1966-08-10 1982-05-15
Iowa Ornithologists' Union, field report compiled data, Hooded Merganser, 1966-1983 Field notes Bird watching Birds--Counting Birds--Research 1966-03-06 1983-06-15
Iowa Ornithologists' Union, field report compiled data, American Bittern, 1965-1983 Field notes Bird watching Birds--Counting Birds--Nests Birds--Research 1965-11-04 1983-07-07
Iowa Ornithologists' Union, field report compiled data, White-winged Crossbill, 1965-1982 Field notes Bird watching Birds--Counting Birds--Research 1965-10-26 1982-04-17
Iowa Ornithologists' Union, field report compiled data, Common Redpoll, 1965-1982 Field notes Bird watching Birds--Counting Birds--Research 1965-10-23 1982-12-31