Daily field checking list of birds observed in Boone County by Walter Rosene and Robert Walker, April 6, 1941. Also notes a brooding Red-shouldered Hawk.
Daily field checking list of birds observed at Camp Hantesa by Walter Rosene and others, July 6, 1940. Also notes a Ruby-throated Hummingbird sitting on a nest.
Bird checklist dated December 20, 1936. This checklist was used by Walter Rosene to record birds sighted around North Bridge with Bob Walker between 8:15 and 10:15.
A male Wilson's Phalarope brooding a nest that is located in Cherry County, Nebraska, June 3, 1930. Slide originally titled "Wilson's Phalarope--Female on Nest." The lantern slide is hand-colored. Rosene provides details on photograph.
Daily field checking list of birds observed at Dunbar Slough by Walter Rosene and Robert Walker, June 2, 1940. Also notes a Red-winged Blackbird nest and a Yellow-headed Blackbird nest each with eggs.
Bird checklist dated November 8, 1935. This checklist was used by Walter Rosene to record birds sighted around Jasper County between 9:00 and 12:00, and 2:00 and 4:00.
A Killdeer brooding her four eggs in a nest located by a hill of corn, July 4, 1927. Her wings are spread out in order to cover the large eggs. Slide originally titled "Killdeer on Nest." The lantern slide is hand-colored. Rosene provides details on photograph.
Bird checklist dated May 23, 1935. This checklist was used by Walter Rosene to record birds sighted around the Ledges with Bob Walker between 1:20 and 6:20.
A Bobolink nest containing three eggs, located in the Dunlop wild hay meadow, June 19, 1926. Slide originally titled "Bobolink Nest with Eggs." The lantern slide is hand-colored. Rosene provides details on photograph.
Bird checklist dated April 8, 1934. This checklist was used by Walter Rosene to record birds sighted around North Bridge with Bob Walker between 6:30 and 10:00.
Daily field checking list of birds observed at Ledges State Park by Walter Rosene and Robert Walker, May 26, 1940. Also notes a Yellow Warbler nest, Field Sparrow nest and a Bell's Vireo nest all containing Brown-headed Cowbird eggs.
Bird checklist dated May 21, 1933. This checklist was used by Walter Rosene to record birds sighted around Adix Pond, North Bridge, and Dead Man's Gulch with Bob Walker between 6:30 and 11:00.
The first Mockingbird nest ever found in Polk County, June 25, 1929. The nest was built in a wild grape vine on the Ed R. Fiske farm, located southwest of Des Moines. Photograph originally titled "Nest of Mockingbirds." Rosene provides details on back of photograph.
