In this photo taken in 2012, a skull of an endangered helmeted hornbill is displayed in Bangkok, Thailand. Conservationists say time is running out for Thailand's dwindling population of helmeted hornbills thanks to poaching of the exotic birds for the ivory-like casks atop their large yellow beaks.
In this photo taken in 2012, a skull of an endangered helmeted hornbill is displayed in Bangkok, Thailand. Conservationists say time is running out for Thailand's dwindling population of helmeted hornbills thanks to poaching of the exotic birds for the ivory-like casques atop their big yellow beaks. (Kaset Sutasha/The Bird Conservation Society of Thailand via AP)