|A Victoria crowned pigeon (Goura victoria), showing off its flashy crest|
The species is currently considered Threatened and their numbers are declining. Due to its beauty, it is hunted for its feathers. It is also eaten, either as a result of hunting or capturing of nestlings which are then raised for food. Apparently, it's very hard to hunt the birds if you don't use a shotgun due to their flight distance. In New Guinea at least, shotguns aren't really available. Of course, efforts are being undertaken to work on helping keep the species around, which include such efforts as encouraging ecotourism.
Sources are ARKive, Bristol Zoo Gardens, Bird Life International, and the IUCN Red List. Images are from Wikimedia Commons under Creative Commons licenses: one, two.