A report of birds sighted submitted by John Van Dyk. This item was used as supporting documentation for the Iowa Ornithologists Union Quarterly field report of spring 1981.
Records Committee review for a Chestnut-collared Longspur at northwest Sioux County, IA on April 12, 1995. Includes a record review document with votes, a photograph, an article in Iowa Bird Life, an article in Field Notes, and a documentation form submitted to the committee.
John Van Dyk letter reports that he has few observations to share this season due to his being out of state for an extended period. This item was used as supporting documentation for the Iowa Ornithologists Union Quarterly field report of Fall 1980.
List of birds and locations contributed by John Van Dyk. The field notes consist of birds and locations observed for early fall 1995. Included with the field notes is a letter from Jon Van Dyk to James J. Dinsmore regarding details on birds observed in late June and early August. This item was used as supporting documentation for the Iowa Ornithologists' Union Quarterly field report of fall 1995.
An annotated list of birds sighted by John Van Dyk dated December 1, 1999. This item was used as supporting documentation for the Iowa Ornithologists' Union Quarterly field report of fall 1999.
Letter from John Van Dyk to Carl Bendorf containing field reports with detailed sighting information and general description of birding. This item was used as supporting documentation for the Iowa Ornithologists' Union Quarterly field report of spring 1991.
Email of the Iowa Birdline update for December 12, 1994. Highlights of the update include sightings of a Bohemian Waxwing as well as several species of Gulls, including a first winter Mew Gull, an adult Lesser Black-backed Gull, a first winter Glaucous Gull, and a first winter Thayer's Gull. Also included are handwritten notes for the next week's update with sightings of a Say's Phoebe, Trumpeter Swans, an Eastern Bluebird, and a flock of Snow Buntings.
Iowa RBA updates for February 10 and February 17, 1997. Highlights of the two updates include the continued presence of a Pinyon Jay and sightings of Great Gray Owls, a Ferruginous Hawk, Snowy Owls, a Prairie Falcon, and Red Crossbills. Also included are additional brief updates from February 12, 15, and 19, 1997, with more details on the Great Gray Owl and Ferruginous Hawk as well as sightings of Greater Scaup, a Peregrine Falcon, and Pine Siskins.
Compilation of sightings data for the Great Horned Owl submitted to the Iowa Ornithologists' Union by members between the years 1980-1983. The document also includes the name of the observer, date, and location.
Field notes contributed by John Van Dyk in an email to James J. Dinsmore. The field notes contain birds observed by Ken Hollings. This item was used as supporting documentation for the Iowa Ornithologists' Union Quarterly field report of summer 2001.
List of birds and locations contributed by John Van Dyk. This item was used as supporting documentation for the Iowa Ornithologists Union Quarterly field report of spring 1980.
Summary of the Iowa Birdline update for March 15-June 15, 1996. Highlights of an outstanding spring season for rarities include sightings of Mountain Bluebirds, a Townsend's Solitaire and five Cinnamon Teal reports in March. Other interesting observations of note were April sightings of a Ruff, a Fish Crow, Chestnut-collared Longspurs, and an unusually large number of White Faced Ibis. A sighting of Lazuli Buntings as well as a second state record of two Glossy Ibis were reported in May and a MacGillivray's Warbler was spotted in June.
Letter from Jon Van Dyk to Nicholas S. Halmi regarding bird sightings, May 21, 1978. Many of the sightings were made in Sioux County. This item was used as supporting documentation for the Iowa Ornithologists Union Quarterly field report of spring, 1978.
Summary of the Iowa Birdline update for December 15, 1996-March 15, 1997. Highlights of the update include early winter sightings of an immature Pinyon Jay and a Clark's Nutcracker. Interesting observations from the Christmas Bird County were sightings of a gray phase Gyrfalcon and a Pine Grosbeak. Also of note were the late winter sightings of Great Gray Owls, a Ferruginous Hawk, and a Townsend's Solitaire.
Field notes were contributed by John Van Dyk. This item was used as supporting documentation for the Iowa Ornithologists' Union Quarterly field report of winter 1981-1982.
Winter report of birds found at Red Rock as well as statewide bird sightings contributed by Gladys Black. This item was used as supporting documentation for the Iowa Ornithologists' Union Quarterly field report of winter 1978-1979.
Field notes titled "fall report" submitted by John Van Dyk. Includes notes on the weather for that period. An annotation highlights a note discussing Sparrow migration. This item was used as supporting documentation for the Iowa Ornithologists' Union Quarterly field report of fall 1978.
Douglas C. Harr letter contains an annotated list of birds sighted by himself and others. This item was used as supporting documentation for the Iowa Ornithologists Union Quarterly field report of winter 1980-1981.
Spring report of birds found in northwest Iowa contributed by John Van Dyk, June 1, 1979. This item was used as supporting documentation for the Iowa Ornithologists' Union Quarterly field report of spring 1979.
