, Volume 29, Issue 3, pp 360-365

Seasonal brain acetylcholinesterase activity in three species of shorebirds overwintering in Texas

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There was no seasonal variation in average brain AChE activity for the 3 species of wild birds collected between October and February. Further work needs to be done, however, covering an even broader time frame which includes the reproductive cycle. It appears that some birds feeding at the mouth of an agricultural drain, at some distance from the nearest pesticide applications, were affected by AChE inhibitors.