You can tell this to hen and pigs. You will be astonished by their answers about how few generations of artificial selection will result in successful variety.

You can tell this to hen and pigs. You will be astonished by their answers about how few generations of artificial selection will result in successful variety. I once spent a year working with a private zoo owner and collector. He had several species successfully bred in captivity, while the mainstream opinion was "its impossible to breed Eublepharis turcmenicus in captivity". Before 1988 there were only 40 known specimen. He alone had 20 alive and breeding. Just a matter of observation, careful experiment and some money, not much. That hornbill is a challenge, but not impossible one. I bet you, its cheaper to establish breeding program, than spent money on poachers. Disclaimer: Worked 6 years in nature conservation programmes.