What human health concern is associated with pests like birds and bats?

Pests like birds and bats can pose significant human health concerns primarily because they have the potential to spread diseases. This risk often stems from their fecal matter, which can harbor pathogens that are harmful to humans. For instance, bird droppings can transmit diseases such as histoplasmosis, cryptococcosis, and other respiratory issues. Additionally, certain species of bats are known to carry rabies, which can be transmitted through bites or saliva.

While it is true that some animals can cause allergies or contribute to noise pollution, the specific health risks associated with diseases transmitted through bites and fecal matter present a more immediate and severe concern for human safety. The other options either underestimate the risks associated with these animals or focus on less critical issues. Understanding the potential for disease transmission is crucial for effective pest management and public health awareness.