Case histories of bald eagles and other raptors killed by organophosphorus insecticides topically applied to livestock
Journal of Wildlife Diseases
By: C. J. Henny, E. J. Kolbe, E. F. Hill, and L. J. Blus
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Abstract
Since 1982 when secondary poisoning of a red-tailed hawk (Buteo jamaicensis) was documented following the recommended use of famphur applied topically to cattle, the Patuxent Wildlife Research Center has tested dead birds of prey for poisoning by famphur and other pour-on organophosphorus (OP) insecticides. Brain cholinesterase (ChE) activity was first determined, then if ChE was depressed greater than or equal to 50%, stomach and/or crop contents were evaluated for anti-ChE compounds. This report presents the circumstances surrounding the OP-caused deaths of eight bald eagles (Haliaeetus leucocephalus), two red-tailed hawks, and one great horned owl (Bubo virginianus) between March 1984 and March 1985. OP poisoning of raptors by pour-on insecticides in the United States is widespread, but its magnitude is unknown.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Case histories of bald eagles and other raptors killed by organophosphorus insecticides topically applied to livestock |
| Series title | Journal of Wildlife Diseases |
| Volume | 23 |
| Issue | 2 |
| Year Published | 1987 |
| Language | English |
| Contributing office(s) | Patuxent Wildlife Research Center |
| Description | 292-295 |
| Larger Work Type | Article |
| Larger Work Subtype | Journal Article |
| Larger Work Title | Journal of Wildlife Diseases |
| First page | 292 |
| Last page | 295 |
| Google Analytic Metrics | Metrics page |