Hi! I'm hoping to learn how to vent sex my ducklings who are due to hatch in a month. I've read and watched a bunch of stuff online, but everyone's been pretty clear that the best way to learn without putting ducklings at risk is to have someone teach you in person. I'm wondering if there's anyone in the Portland area who's familiar with vent sexing ducklings and would be willing to teach my husband and me. Thanks!