Title Genres Topics Date (Start) Date (End)
Pearl Knoop letter to Peter C. Petersen regarding Marble Rock, Iowa spring migration, June 10, 1965 Correspondence Field notes Bird watching Birds--Migration Fringillidae | Finches Parulidae | Warblers 1965-06-10 N/A
Pearl Knoop letter to Peter C. Petersen regarding nesting season, August 21, 1964 Correspondence Field notes Bird watching Birds--Migration Birds--Nests Birds--Research Ornithology--Methodology 1964-08-21 N/A
Pearl Knoop letter to Peter C. Petersen regarding spring migration, June 4, 1963 Correspondence Field notes Bird watching Birds--Migration Birds--Research Ornithology--Methodology 1963-06-04 N/A
Peter C. Petersen letter to Nicholas S. Halmi regarding spring bird sightings, May 30, 1979 Correspondence Field notes Bird watching Birds--Migration Parulidae | Warblers 1979-05-30 N/A
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
Peter Ernzen letter to Thomas Kent regarding spring migration, spring 1998 Correspondence Field notes Bird watching Birds--Identification Birds--Migration Birdsongs 1998-03-01 1998-05-31
Peter Wickham letter to Carl Bendorf, June 2 1991 Checklists Correspondence Field notes Bird watching Birds--Identification Birds--Migration Weather 1991-03-01 1991-06-02
Philip DuMont letter to Burt Gresham regarding Goose migration, April 4, 1938 Correspondence Field notes Bird watching Birds--Counting Birds--Migration 1938-04-04 N/A
Philip DuMont telegram to Burt Gresham regarding Goose migration Correspondence Field notes Bird watching Birds--Counting Birds--Migration 1936-03-01 1936-05-31
Philip DuMont telegram to Burt Gresham regarding Goose migration, March 18, 1938 Correspondence Field notes Bird watching Birds--Counting Birds--Migration 1938-03-18 N/A
Philip DuMont telegram to Burt Gresham regarding Goose migration, March 1938 Correspondence Field notes Bird watching Birds--Counting Birds--Migration 1938-03-01 1938-03-31
Philip DuMont telegram to Burt Gresham regarding Goose migration, Spring 1933 Correspondence Field notes Bird watching Birds--Counting Birds--Migration 1933-03-01 1933-05-31
Polk County check-list of the observations of members of the Des Moines Audubon Society Checklists Field notes Maps (documents) Bird watching Birds--Migration Birds--Research 1973-11-01 1973-11-30
Randall Pinkston letter to James Dinsmore regarding bird sightings for the official field report, June 2, 1991 Checklists Correspondence Field notes Bird watching Birds--Behavior Birds--Identification Birds--Migration Rare birds Weather 1991-06-02 N/A
Records Committee review for rare bird sighting for American Swallow-tailed Kite at Boone in 1896 Administrative records Clippings (information artifacts) Field notes Birds--Identification Birds--Migration Rare birds Hunting Zoological specimens 1896-09-12 1994-02-03
Records Committee review for rare bird sighting for American Swallow-tailed Kite at Lime Springs in 1888 Administrative records Clippings (information artifacts) Field notes Birds--Identification Birds--Migration Rare birds 1895-01-01 1994-02-03
Records Committee review for rare bird sighting for American Swallow-tailed Kite at Marshall County in 1894 Administrative records Clippings (information artifacts) Field notes Birds--Identification Birds--Migration Rare birds 1895-01-01 1994-02-03
Records Committee review for rare bird sighting for Barrow's Goldeneye at Greene County before 1970 Administrative records Clippings (information artifacts) Field notes Birds--Identification Birds--Migration Rare birds 1977-01-01 1994-02-03
Records Committee review for rare bird sighting for Barrow's Goldeneye at Keokuk district in 1888 Administrative records Clippings (information artifacts) Field notes Tables (documents) Birds--Behavior Birds--Identification Birds--Migration Rare birds Zoological specimens 1907-01-01 1993-08-26
Records Committee review for rare bird sighting for Barrow's Goldeneye at Linn County before 1907 Administrative records Clippings (information artifacts) Field notes Birds--Behavior Birds--Identification Birds--Migration Rare birds 1907-01-01 1993-08-26
Records Committee review for rare bird sighting for Barrow's Goldeneye at Mills and Pottawattamie Counties before 1907 Administrative records Clippings (information artifacts) Field notes Tables (documents) Birds--Behavior Birds--Identification Birds--Migration Rare birds 1907-01-01 1993-08-26
Records committee review for rare bird sighting for Black Rail at Iowa City in 1885 Administrative records Clippings (information artifacts) Field notes Birds--Identification Birds--Migration Rare birds 1888-01-01 1993-08-26
Records Committee review for rare bird sighting for Black-necked Stilt at Floyd County in 1916 Administrative records Clippings (information artifacts) Field notes Birds--Identification Birds--Migration Rare birds 1916-09-01 1993-08-19
Records Committee review for rare bird sighting for Black-necked Stilt at Mills and Pottawattamie Counties before 1907 Administrative records Clippings (information artifacts) Field notes Birds--Identification Birds--Migration Rare birds 1907-03-01 1993-08-19
Records Committee review for rare bird sighting for Black-necked Stilt at Sioux City in 1902 Administrative records Clippings (information artifacts) Field notes Birds--Identification Birds--Migration Rare birds 1907-03-01 1993-08-19