Title Genres Topics Date (Start) Date (End)
Questionnaire for a new birds of Iowa, Francis Roberts Checklists Questionnaires Research notes Birds--Geographical distribution Birds--Nests Birds--Research Rare birds N/A N/A
Questionnaire for a new birds of Iowa, George Hendrickson Checklists Questionnaires Research notes Birds--Geographical distribution Birds--Nests Birds--Research Rare birds N/A N/A
Questionnaire for a new birds of Iowa, Oscar Allert Checklists Questionnaires Research notes Birds--Geographical distribution Birds--Nests Birds--Research Rare birds N/A N/A
Questionnaire for a new birds of Iowa, Sanderson, Schuenke, Bullock Checklists Questionnaires Research notes Birds--Geographical distribution Birds--Nests Birds--Research Rare birds N/A N/A
Questionnaire for a new birds of Iowa, Walter Rosene Checklists Questionnaires Research notes Birds--Geographical distribution Birds--Nests Birds--Research Rare birds N/A N/A
Questionnaire for a new birds of Iowa, William Youngworth Checklists Questionnaires Research notes Birds--Geographical distribution Birds--Nests Birds--Research Rare birds N/A N/A
Robert Jessen letter and checklist to Vernon M. Kleen regarding birds sighted during 1974 fall migration, December 1, 1974 Checklists Correspondence Bird watching Birds--Identification Birds--Migration Birds--Research Ornithology--Methodology 1974-08-01 1974-11-30
Robert Jessen letter and checklist to Vernon M. Kleen regarding winter birds sighted in Mahaska County, April 2, 1975 Checklists Correspondence Field notes Bird watching Birds--Identification Birds--Research Ornithology--Methodology 1975-04-02 N/A