Ospreys, large birds of prey, became extinct in the U.K. in the early 20th century, but were reintroduced in Scotland in the 1950s. A couple of years ago, a nature reserve in Dorset, England, attempted to boost the number of the rare birds in Britain by using fake osprey nests and polystyrene birds to lure ospreys to the area. (Shown here are real birds in a real nest.)
The Royal Society for the Protection of Birds created “show homes” at the top of 40-foot trees, building large nests that contained two-foot polystyrene birds. The plan was to attract the ospreys’ attention as they migrate back from Africa in hopes they would stay in Dorset for the summer.