MDARD Michigan Core Pesticide Applicator Practice Exam

What is one way birds can be killed by pesticides?

1. Ingesting pesticide granules

2. Avoiding contaminated insects

3. Living in protected habitats

4. Having multiple food sources

The correct answer is: Ingesting pesticide granules

Birds can be killed by pesticides primarily through the ingestion of pesticide granules. When birds consume seeds or granules treated with pesticides, they inadvertently take in toxic substances that may be harmful or lethal. This method of pesticide exposure is particularly concerning when granules are applied to agricultural fields, as birds may not be able to distinguish between treated and untreated food sources. Ingesting pesticide granules poses a significant risk, especially when the granules are attractive to birds or when birds forage in areas where pesticide application has recently occurred. Symptoms of poisoning may include disorientation, lethargy, and potentially death, depending on the toxicity of the pesticide and the dose ingested. The other options—avoiding contaminated insects, living in protected habitats, and having multiple food sources—do not pose risks for bird exposure to pesticide toxicity. In fact, birds that can avoid contaminated food sources are less likely to experience the harmful effects of pesticides, which underscores the importance of managing pesticide application to reduce risks to wildlife.