Don’t worry in a couple years you’ll have enough that they will run out of brush to hide in. I remember as a kid when we didn’t have any pigs around here. Then one farmer saw 4 in his hay pile, I went and shot the first one anybody around my little town had ever killed. In 3-5 years we were overrun. Now my dad’s best friend catches them in back of his barnyard in a trap, he’s killed 43 in the last month.