What effect does extended exposure to rain have on raptors?

Extended exposure to rain can negatively impact the health of raptors, particularly their immune response to disease. When birds of prey get wet, their feathers can lose their ability to insulate and repel water effectively. This can lead to the bird becoming cold and stressed, which can weaken its immune system over time. A lowered immune response makes raptors more susceptible to infections and diseases, as their bodies are less capable of fighting off pathogens.

While some may think that rain could help improve plumage or hunting skills, the reality is that the adverse effects of prolonged wet conditions outweigh potential benefits. The insulating properties of feathers are critical for maintaining body temperature, and disruption of this can lead to greater health issues, impacting the raptor's ability to survive and thrive in the wild. Therefore, the correlation between extended rain exposure and a decline in immune function is well-supported by knowledge of avian physiology and environmental stress factors.