How Sick is Your Bird? The Smaller the bird, the Quicker She'll Get Sick
#246: Avian specialist Dr. Jennifer Graham discusses how birds are prone to respiratory disease and are very sensitive to pollutants in the air — which is why they used to keep canaries in coal mines as a bellwether of air quality. If your bird seems "off," she says, Do not wait before going to the veterinarian if your bird shows signs of illness! She also says "the smaller the bird, the quicker they get sick."