Use drowning sets when possible. Drowning sets keeps predators off the catch! Beaver will fight the snare, damaging the pelt. Beaver also fight for their territory and puzzy, that damages fur! Are they bringing any price nowdays? I haven't trapped in 20 years, some of my favorite outdoor experience's were on a trap line! My daughter and son in law, are teaching my granddaughters to trap. The kids, oldest 12 youngest 6, had trapped five Martin this year! Exciting times!