Young Sick Pigeon - Brown Droppings, Mucus - Urgent!

Victorian Racing Pigeon Board

What to Do if Your Pet Bird Is Vomiting or Regurgitating

The Scoop on Backyard Chicken Poop – Southland Organics

Diseases - Belgica de Weerd

Occupational Asthma: General: Bird Fancier's Lung

Sick Wild pigeon found sitting on the dangerous road by my brother, it has nasal discharge and is not opening it's eyes

Need help, is my pigeon okay? : r/PetPigeons

Visible Indicators of Health in the Head and Throat - The Australian Pigeon Company

Sometimes it's not teeth - other causes of bad breath in pets. - Vet Help Direct

Urgent help needed!

What your chickens' poo is saying about their health

Urgent help needed!

Dropping Interpretation - The Australian Pigeon Company