Sharon Beals, fascinated with the variety of birds and the way they adapt, took pictures of nests in museums and educational facilities for her book Nests: Fifty Nests and the Birds that Built Them.
"There are those that build with mud, burrow tunnels, weave hanging pendulous baskets or cups onto branches, stitch leaves, stack sticks, or glue with saliva. Some just make simple scrapes on the ground, or fill cavities with fur and bones, and others that camouflage their nests with lichen, spiderweb, or moss," Beals wrote in her book.
Pictured here is the nest of a Caspian tern, collected from Baja California, Mexico, in 1932. See more at Slate. Link -via Nag on the Lake
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