Recently I visited with a fellow down in South Texas who has taken friendly issue with where I place box traps on my ranking sheet for feral hog trapping. Now I will not argue with success, and this person is having good luck trapping hogs in larger box traps that exceed the commonly used 4X8 ft box style. His recommendation of using larger traps and larger doors is one that I share and in his view it increases the capture success rate. Now, there is no scientific study backing this up, but it stands to reason that it works. It is similar to the idea of using corral traps to capture the entire sounder (herd). Remember that it takes the same amount of time, truck fuel, and bait to set and check small box traps, that usually captures 1 or 2 big pigs, as it does to check a corral trap that may capture the entire group.
In a series of feral hog publications developed for the Plum Creek Watershed Partnership we extend information to the public that aids their efforts to reduce the non-native and invasive species we all call the feral hog. Below, you will find our new publication "Corral Traps for Capturing Feral Hogs". This should give you good ideas on trap designs, trigger mechanisms, and a few trapping tips.
These publications were made possible by the Texas State Soil and Water Conservation Conservation Board through an Environmental Protection Agency 319 grant.
Additionally, the Texas AgriLife Extension Service's Wildlife and Fisheries Extension Unit has helpful information at their website called Coping with Feral Hogs.
A friend of mine said that she had just been pigged (see the photo above). Perhaps these publications will prevent you property, wildlife resources, and water quality from being pigged.
Corral Traps for Capturing Feral Hogs