Which of the following is NOT a category of pests commonly targeted by pest control?

The correct answer identifies birds as not being a primary category of pests commonly targeted by pest control in the same way that insects, rodents, and weeds are. In the context of pest control, the primary focus is often on organisms that infest structures, invade gardens, or compete with crops.

Insects are prevalent pests that can cause significant damage to both indoor and outdoor environments through infestations. Rodents, commonly found in urban areas, pose health risks and can damage property. Weeds are considered pests in agricultural settings because they compete for nutrients and resources essential for crops, thereby impacting agricultural productivity.

While birds can sometimes be considered pests, especially in specific agricultural or urban contexts where they may cause problems such as eating crops or nesting in buildings, they are generally not categorized as a primary target for typical pest control measures like the other three groups. Therefore, bird control is often addressed through different management strategies that focus on habitat modification or exclusion rather than the direct application of pesticides or extermination techniques commonly used for insects, rodents, and weeds.