Abstract

In this pilot study the herbicide tembotrione was detected in three dead nestling goshawks that suffered from excessive feather loss (also known as “pinching-off”) and other internal anomalies. Tembotrione is used in maize cultivation and it blocks an essential enzyme in most plants, thereby preventing photosynthesis. It also blocks this enzyme in birds, which may lead to aberrant chick development. The three goshawk nests were located near farms with maize cultivation and it is likely that the nestlings consumed tembotrione-contaminated prey. Further study is needed to clarify any causal relationship.

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