10 of the World’s Smallest Birds

This species is tiny but flashy, with plumage of amazing colors and patterns. Found in eastern and southern Australia in eucalyptus forests, it is one of the continent's smallest bird species at only 3.1 to 3.9 inches in length. The diminutive size helps in their preferred nesting spots: small tunnels. Sadly, this beautiful bird species is facing a decline due to the loss of its preferred forest habitat for human uses such as sheep-grazing or urban development.

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