Insecticide residues on weathered passerine carcass feet

Environmental Forensics
By: , and 



Nine brown-headed cowbirds (Molothrus ater) were exposed to turf srayed with either EarthCare? (25% diazinon; 477 L a.i./ha) or Ortho-Klor? (12 .6% chlorpyrifos; 5.21 L a.i./ha.). Birds were euthanized and one foot from each bird was weathered outdoors for up to 28 days and the other foot was kept frozen until residue analysis. When compared to the unweathered feet, feet weathered for 28 days retained 43% and 37% of the diazinon and chlorpyrifors, respectively. Insecticide residues were below the level of detection (1.0 ppm) on control feet. Weathered feet may be used for determining organophosphorus insecticide exposure to birds.

Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Insecticide residues on weathered passerine carcass feet
Series title Environmental Forensics
Volume 4
Issue 3
Year Published 2003
Language English
Contributing office(s) Patuxent Wildlife Research Center
Description 199-203
Larger Work Type Article
Larger Work Subtype Journal Article
Larger Work Title Environmental Forensics
First page 199
Last page 203
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