What is the most common species of domesticated bird?

The most common species of domesticated bird is the chicken.

There are thought to be 3.5 billion chickens in the world, nearly one for every human.

1 thought on “What is the most common species of domesticated bird?”

  1. There hasn’t been 3.5B people on earth for over 50 years, closer now to 7-8b i recall? But of course surely there are more chickens now too..?!

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