Size dimorphism, molt status, and body mass variation of prairie falcons nesting in the Snake River Birds of Prey National Conservation Area
Journal of Raptor Research
By: Karen Steenhof and James O. McKinley
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Abstract
Thirty-nine bald eagles found sick or dead in 13 States during 1969 and 1970 were analyzed for pesticide residues. Residues of DDE, dieldrin, polychlorinated biphenyls (PCB's), and mercury were detected in all bald eagle carcasses; DDD residues were detected in 38; DDT, heptachlor epoxide, and dichlorobenzophenone (DCBP) were detected less frequently. Six eagles contained possible lethal levels of dieldrin in the brain, and one contained a lethal concentration of DDE (385 ppm) in the brain together with 235 ppm of PCB's. Autopsy revealed that 18 bald eagles were illegally shot; other causes of death were impact injuries, electrocution, emaciation, and infectious diseases.
Suggested Citation
Steenhof, K., McKinley, J.O., 2006, Size dimorphism, molt status, and body mass variation of prairie falcons nesting in the Snake River Birds of Prey National Conservation Area: Journal of Raptor Research, v. 40, no. 1, p. 71-75, https://doi.org/10.3356/0892-1016(2006)40[71:SDMSAB]2.0.CO;2.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Size dimorphism, molt status, and body mass variation of prairie falcons nesting in the Snake River Birds of Prey National Conservation Area |
| Series title | Journal of Raptor Research |
| DOI | 10.3356/0892-1016(2006)40[71:SDMSAB]2.0.CO;2 |
| Volume | 40 |
| Issue | 1 |
| Year Published | 2006 |
| Language | English |
| Publisher | BioOne |
| Contributing office(s) | Forest and Rangeland Ecosystem Science Center |
| Description | 5 p. |
| First page | 71 |
| Last page | 75 |