Title Genres Topics Date (Start) Date (End)
Letter to members of the Iowa Ornithologists' Union announcing the Iowa Birdline is now in operation, December 1981 Correspondence Ornithology--Methodology Ornithology--Societies, etc Citizen science 1981-12-01 1981-12-31
Letter to members of the Iowa Ornithologists' Union regarding setting up a Birdline Correspondence Ornithology--Methodology Ornithology--Societies, etc Citizen science 1981-06-01 1981-12-31
Letter to Iowa Ornithologists' Union members regarding an Iowa Birdline Correspondence Ornithology--Methodology Ornithology--Societies, etc Citizen science 1981-09-01 1981-09-30
Nicholas S. Halmi letter to Vernon M. Kleen regarding birds sighted around Iowa City during the winter season, April 1, 1974 Correspondence Field notes Bird populations Bird watching Birds--Behavior Birds--Migration Citizen science 1974-04-01 N/A
Nicholas S. Halmi letter to Vernon M. Kleen regarding birds sighted around Iowa City during winter season, April 5, 1975 Correspondence Field notes Bird watching Habitat (Ecology) Citizen science 1975-04-05 N/A