15 Smallest Birds in the World

7. Weebill – The Smallest Birds in Australia
Australia's Smallest Bird, the Weebill
Weebills (Smicrornis brevirostris) are the smallest birds in Australia and grow only up to 3.5 inches long. These birds are found across mainland Australia primarily in dry eucalyptus forests and malle.

These birds are known to help maintain the health of trees as they eat a range of insects that would otherwise harm the trees.

Weebills don’t have a fixed breeding season, which depends entirely on climatic conditions.

These birds can breed at any time of the year but most commonly breed from July to May.
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