Title Genres Topics Date (Start) Date (End)
Lawrence A. Bjonerud letter to Frederic Leopold regarding a Mallard nest and identifying Wood Ducks, May 16, 1966 Correspondence Birds--Identification Birds--Nests Eggs--Incubation Ducklings 1966-05-16 N/A
Preparations for the spring return of nesting Wood Ducks Reports Birdhouses Hunting--Moral and ethical aspects Eggs--Incubation Duck populations Ducklings Wood duck--Behavior N/A N/A
Field notes contributed by Diane C. Porter, June 1, 1992 Field notes Bird feeders Bird watching Birds--Nests Birdsongs Parulidae | Warblers Birds--Infancy Eggs--Incubation Emberizidae | Sparrows 1992-06-01 N/A
Helen Yoder letter to James L. Fuller regarding a Loggerhead Shrike sighting, May 19, 1992 Correspondence Field notes Bird watching Birds--Nests Eggs--Incubation 1992-05-19 N/A