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The Spoonbill, Vol. 44, No. 11, November 1995
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The Spoonbill, Vol. 44, No. 11, November 1995 - Image 5. November 1995. Special Collections, University of Houston Libraries. University of Houston Digital Library. Web. June 23, 2021. https://digital.lib.uh.edu/collection/2007_023/item/224/show/218.

Disclaimer: This is a general citation for reference purposes. Please consult the most recent edition of your style manual for the proper formatting of the type of source you are citing. If the date given in the citation does not match the date on the digital item, use the more accurate date below the digital item.

(November 1995). The Spoonbill, Vol. 44, No. 11, November 1995 - Image 5. Outdoor Nature Club Newsletters. Special Collections, University of Houston Libraries. Retrieved from https://digital.lib.uh.edu/collection/2007_023/item/224/show/218

Disclaimer: This is a general citation for reference purposes. Please consult the most recent edition of your style manual for the proper formatting of the type of source you are citing. If the date given in the citation does not match the date on the digital item, use the more accurate date below the digital item.

The Spoonbill, Vol. 44, No. 11, November 1995 - Image 5, November 1995, Outdoor Nature Club Newsletters, Special Collections, University of Houston Libraries, accessed June 23, 2021, https://digital.lib.uh.edu/collection/2007_023/item/224/show/218.

Disclaimer: This is a general citation for reference purposes. Please consult the most recent edition of your style manual for the proper formatting of the type of source you are citing. If the date given in the citation does not match the date on the digital item, use the more accurate date below the digital item.

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Title The Spoonbill, Vol. 44, No. 11, November 1995
Publisher Outdoor Nature Club
Date November 1995
Subject.Topical (LCSH)
  • Ornithology
Subject.Geographic (TGN)
  • Houston, Texas
Genre (AAT)
  • newsletters
  • periodicals
Language English
Type (DCMI)
  • Text
Original Item Location ID 2007-023, Box 12, Folder 17
ArchivesSpace URI /repositories/2/archival_objects/9880
Original Collection Outdoor Nature Club Records
Digital Collection Outdoor Nature Club Newsletters
Digital Collection URL http://digital.lib.uh.edu/collection/2007_023
Repository Special Collections, University of Houston Libraries
Repository URL http://libraries.uh.edu/branches/special-collections/
Use and Reproduction In Copyright
File Name index.cpd
Item Description
Title Image 5
Format (IMT)
  • image/jpeg
File Name uhlib_2007_023_b012_f017_011_005.jpg
Transcript Swainson's(continuedfrom page 1) In our study area, crop production supplanted 30% of the grazing land in recent years. The impact of these changes already has affected the overwinter survival of the Swainson's Hawk. At one roost site on an estancia south of Hilario Lagos, we counted over 700 recently-killed hawks. The ranch owner at the site explained to us that the hawks had all died following aerial pesticide application in fields adjacent to the roost. The birds'symptoms indicated that organophosphate poisoning was the cause of this massive mortality. Biologists, farmers and agricultural officials in Argentina understand that the future may not bode well for the Swainson's Hawk. Most agreed that control of tucura would be an important program in the near future, and that aerial application of pesticides would dramatically increase. We found three banded individuals among the carcasses: one was banded in Butte Valley, CA (1993); one was from Saskatchewan (1990); and one was from Colorado (1975—the oldest recorded Swainson's hawk in the wild). This finding suggests that the flocks include individuals from the species' entire range. Argentine researchers and conservationists are interested in assessing the situation and developing conservation measures. We established a cooperative project with these researchers to assess Swainson's Hawk distribution and relationships with land uses over the next two years. In North America, researchers and HawkWatch International, will fit more Swainson's Hawks with satellite transmitters to identify the hawks' distribution patterns during the non-breeding season. Twelve transmitters will be on their way south this fall. Neal Smith of the Smithsonian Tropical Research Institute describes the Swainson's Hawk as "a good tracker of environmental change." This species has adapted to the agricultural systems over much of western North America, and survived the virtual elimination of the migratory locust from Argentina in the 1940s. However, the species has never faced intensive habitat modification and environmental contamination during the period when they are densely concentrated and highly vulnerable. We hope our efforts to monitor these current threats will help ensure a place in the natural world for this magnificent hawk. Brian Woodbridge is an endangered species biologist with the U.S. Forest Service in California. We thank HawkWatch International for permission to reprint this article, which was originally published in Hawk Flash, October 1995. HawkWatch International, P.O. Box 35706, Albuquerque, NM 87176 Area Christmas Counts Compiled by P.D. Hulce Saturday, Dec 16 Houston, P.D. Hulce 863-1142 or Richard Uzar 527-0454 Armand Bayou, George Regmund 474-2551 Sunday, Dec. 17 Freeport, Jim Morgan 461-3080 or Houston Audubon 932-1639 Monday, Dec 18 Mad Island, Karen Cornelius 853-5634 Tuesday, Dec 19 San Bernard NWR, RickSpeer (409) 849-7771 Wednesday, Dec 20 Attwater, Winnie Burkett 992-5640 Saturday, Dec 23 Bolivar, Bill Graber, (409) 866-5452 Tuesday, Dec 26 Galveston, Arch Dillard 996-0107 or Dwight Peake (409) 740-4621 Friday, Dec 29 Old River, Jonelle Buckles 576-2504 or P.D. Hulce 863-1142 Saturday, Dec 30 Brazos Bend, Lynne Aldrich or Peter Gottschling 996-1109 Spring Creek, John Jones 444-8369 or Calvin Blakely 358-5407 Sunday, Dec 31 Buffalo Bayou, Bob Honig 665-6963 or Doug Williams 660-7625 .. Monday, Jan. 1 Cypress Creek, Fred Collins 667-6550 r i i Lsast Page 5