Title Genres Topics Date (Start) Date (End)
Heard on the Birdline, September 15-November 15, 1997 Field notes Bird feeders Bird watching Laridae | Gulls and Terns Rare birds Dial-a-message telephone calls 1997-09-15 1997-11-15
Heard on the Birdline, September 1-November 30, 2000 Field notes Bird watching Birds--Migration Accipitridae | Hawks and Eagles Rare birds Dial-a-message telephone calls 2000-09-01 2000-11-30
Heard on the Iowa Birdline, September 15-November 15, 1995 Field notes Bird watching Rare birds Dial-a-message telephone calls 1995-09-15 1995-11-15
Heard on the Birdline, December 15, 1996-March 15, 1997 Field notes Bird watching Rare birds Dial-a-message telephone calls 1996-12-15 1997-03-15
Heard on the Iowa Birdline, April 1-June 10, 1994 Field notes Bird watching Rare birds Dial-a-message telephone calls 1994-04-01 1994-06-10
Heard over the Iowa Birdline, June 1-November 15, 1992 Field notes Bird watching Rare birds Birds--Mortality Dial-a-message telephone calls 1992-06-01 1992-11-30
Heard over the Iowa Birdline, March 1-May 31, 1992 Field notes Bird watching Rare birds Dial-a-message telephone calls 1992-03-01 1992-05-31
From the Iowa Birdline, December 1, 1991-February 15, 1992 Field notes Bird watching Rare birds Dial-a-message telephone calls 1991-12-01 1992-02-15
Heard on the Birdline, November 15, 1992-March 15, 1993 Field notes Bird watching Rare birds Dial-a-message telephone calls 1992-11-15 1993-03-15
From the Iowa Birdline, September 1-November 30, 1991 Field notes Bird watching Rare birds Dial-a-message telephone calls 1991-09-01 1991-11-30
Heard on the Birdline, July 1-October 15, 1994 Field notes Bird watching Birds--Nests Rare birds Water birds Dial-a-message telephone calls 1994-07-01 1994-10-15
Heard on the Birdline, June 15-September 15, 1995 Field notes Bird watching Birds--Nests Rare birds Charadriiformes | Shore-birds, Gulls, and Auks Dial-a-message telephone calls 1995-06-15 1995-09-15
Heard on the Birdline, March 15-June 15, 1996 Field notes Bird watching Rare birds Dial-a-message telephone calls 1996-03-15 1996-06-15
John Van Dyk letter to Nicholas S.Halmi regarding bird migration, fall 1976 Correspondence Field notes Bird watching Birds--Research Rare birds 1976-12-04 N/A
Heard on the Birdline, December 15, 1997-March 15, 1998 Field notes Bird feeders Bird watching Laridae | Gulls and Terns Rare birds Dial-a-message telephone calls 1997-12-15 1998-03-15
Heard on the Birdline, March 15-June 15, 1998 Field notes Bird watching Anseriformes | Ducks, Geese, and Swans Rare birds Dial-a-message telephone calls 1998-03-15 1998-06-15
Rare bird documentation form for Golden-winged Warbler at Amana Woods in 1981 Field notes Birds--Identification Birdsongs Rare birds 1981-05-01 1981-05-04
Rare bird documentation form for Ruddy Duck at Willow Slough, 1980 Field notes Birds--Identification Ornithology Rare birds 1980-04-12 N/A
Rare bird documentation form for Great Blue Heron at Saylorville Dam, 1984 Field notes Forms (documents) Birds--Identification Ornithology Rare birds 1984-07-27 1984-08-01
Records Committee review for rare bird sighting for Great Gray Owl south of Saint Lucas in 1996 Administrative records Correspondence Field notes Photographs Birds--Identification Photography of birds Rare birds 1996-03-10 2000-11-22
Records Committee review for rare bird sighting for Great Gray Owl at Des Moines in 1996 Administrative records Clippings (information artifacts) Correspondence Field notes Photographs Birds--Identification Rare birds Birds--Collection and preservation Wildlife rehabilitation 1996-03-01 2000-11-24
Records Committee review for rare bird sighting for Great Gray Owl near Decorah in 1974 Administrative records Clippings (information artifacts) Field notes Birds--Identification Rare birds 1974-09-01 1993-08-26
Records Committee review for rare bird sighting for Great Gray Owl north of Sigourney in 1921 Administrative records Clippings (information artifacts) Field notes Birds--Identification Rare birds Trapping 1933-12-01 1993-08-26
Records Committee review for rare bird sighting for Great Gray Owl near Levey in 1922 Administrative records Clippings (information artifacts) Field notes Birds--Identification Rare birds 1923-02-01 1993-08-26
Records Committee review for rare bird sighting for Great Gray Owl at Van Buren County around 1894 Administrative records Clippings (information artifacts) Field notes Birds--Identification Rare birds Hunting 1907-03-01 1993-08-26