As children, we learn that birds build their nests out of twigs and dry grass, but the truth is that bird nest architecture varies greatly, as demonstrated by the tiny Tailor Bird, which uses as its beak as a needle to stitch a protective nest out of leaves.
Orthotomus sutorius, or the Common Tailor Bird, is a small, warbler-like songbird that lives in tropical Asia, but it’s not its singing that’s intriguing, it’s the bird’s nest building skills. It stitches one or two solid tree leaves together to create a cup that provides both a comfortable shelter and camouflage from predators. And when I say stitches, that is exactly what I mean. The female tailor bird uses its sharp beak as a needle to first pierce the leaves, then takes cobwebs or plant fibers and guides it through the holes as thread, until the pouch is nice and secure. It’s unclear how the tailor birds picked up this talent for sewing but it’s clear that it is passed on genetically.
