In the Belly of an Ox: (USED) CPB

Raised in the moorlands of Yorkshire, Richard and Cherry Kearton developed a boyhood fascination with nature that fostered their great desire to photograph it.  Together the brothers invented ingenious camouflage "hides" (including one inside the belly of an ox) in order to get closer to their subjects of birds. After three years, the brothers published the first natural history book entirely illustrated with photographs; it changed the way people view birds and their nests, inspiring them to protect them rather than plunder them.