Have 3 Knob-bills. Two belonged to my friend and mentor Dr. Chubby Andrews that I used to hunt Beaver Dam with before he passed away. Most Torrents are killed by spot and stalk along the rivers in Peru as I hear. As many ducks as I have killed and been with in Argentina I've only seen two hybrids and two mutations. This YBPT/WCPT is one I killed about 5 years ago. The WCPT on left was flying with the hybrid.