👉 The word "capuchin" is an adjective that describes a specific species of mammal. It refers to a type of bird, which is also known as a capuchin, and is found in South America. The capuchin has a distinctive white head with black spots on the cheeks and neck. They are one of the smallest birds in the world, usually between 20-30 inches long and weighing around 5 lbs to 10 pounds.