From ANIMAL PEOPLE, May 2000:
LONDON––English Nature, entrusted with protecting endangered species in England, has hung hundreds of hawk silhouettes over 80 third-floor windows at its headquarters, hoping to deter smaller birds from swooping into the “trees” they see reflected in the glass.
Protected species including firecrests, robins, blue tits, blackbirds, kingfishers, and a pallas’s warbler had all recently been killed there. The pallas’s warbler, native to Siberia, was a species so rare it had never previously been seen by any of the 250-member English Nature staff.
“It’s not the shape that matters,” spokesperson Sue Ellis told Jonathan Theobald and Paul Brown of The Guardian. “It has more to do with breaking up the reflective surface. The building is going to look very odd, but it will give the public some idea of what we are trying to do. One of the messages we’d like to send out is the need for better-designed buildings.”