Title Genres Topics Date (Start) Date (End)
Iowa Birdline update, February 15, 1993 Correspondence Field notes Bird watching Birds--Counting Birds--Identification Anseriformes | Ducks, Geese, and Swans Dial-a-message telephone calls 1993-02-15 N/A
Iowa Birdline update, February 8, 1993 Correspondence Field notes Bird watching Birds--Counting Birds--Identification Anseriformes | Ducks, Geese, and Swans Strigiformes | Owls Dial-a-message telephone calls 1993-02-08 N/A
Iowa Birdline update, February 1, 1993 Correspondence Field notes Bird watching Birds--Counting Birds--Identification Anseriformes | Ducks, Geese, and Swans Charadriiformes | Shore-birds, Gulls, and Auks Dial-a-message telephone calls 1993-02-01 N/A
Iowa Birdline update, January 25, 1993 Correspondence Field notes Bird watching Birds--Counting Birds--Identification Anseriformes | Ducks, Geese, and Swans Dial-a-message telephone calls 1993-01-25 N/A
Iowa Birdline update, January 18, 1993 Correspondence Field notes Bird watching Birds--Counting Birds--Identification Dial-a-message telephone calls 1993-01-18 N/A
Iowa Birdline update, January 11, 1993 Correspondence Field notes Bird feeders Bird watching Birds--Counting Birds--Identification Anseriformes | Ducks, Geese, and Swans Dial-a-message telephone calls 1993-01-11 N/A
Iowa Birdline update, January 4-5, 1993 Correspondence Field notes Bird feeders Bird watching Birds--Counting Birds--Identification Dial-a-message telephone calls 1993-01-04 1993-01-05
Iowa Birdline update, September 19, 1994 Correspondence Field notes Bird watching Birds--Counting Birds--Identification Charadriiformes | Shore-birds, Gulls, and Auks Parulidae | Warblers Dial-a-message telephone calls 1994-09-19 N/A
Erik Munson letter to the members of Big Bluestem Audubon Society regarding the Boone County Christmas Bird Count Correspondence Bird surveys Bird watching Birds--Counting 1990-01-01 1990-12-31
Mark Widrlechner letter to Hank Zaletel regarding the Boone County Christmas Bird Count Correspondence Bird surveys Bird watching Birds--Counting Ornithology--Methodology 1996-01-01 1996-12-31
Mark Widrlechner letter to Boone County Bird Count Participants regarding the 1999 Christmas Bird Count results, January 9, 1999 Correspondence Field notes Bird surveys Bird watching Birds--Counting Ornithology--Methodology 1999-01-09 N/A
Special spring bird census flyer Correspondence Fliers (printed matter) Bird surveys Bird watching Birds--Counting Birds--Migration 1970-05-10 N/A