Use mechanical selective live trapping to target trap specific cats in a colony without recatching already fixed cats. You can target pregnant cats or females first, to be fixed, or large dominant fighting toms causing neighborhood issues. I used this method long before I began using a drop trap or created an RC trap to use for selective trapping. It's cheap and fairly simple. Many a time, I've had lines strung forward and backward from my car from traps, with the lines tied off to my steering wheel, in a dark warehouse, targeting two or three unfixed cats in a colony of over a hundred cats.
A suggestion: Instead of the weight and tight fishline, we add a separate hook to the trap. A S hook, as used to attach a dog tag to a collar, works well. Attach S hook to the top of the trap. Flatten the lower curve of the "s" hook, or snip off part of it, so that only a small amount of the lower curve remains. This makes it easy to release the hook. Attach a string to the "s" hook, so that the tug on the string will release the spring door the use the add-on-hook to hold the trap open.
9912011 3 years ago