Trapping can be easy when you have a dedicated caretaker feeding multiple times a day. In this case, the cats just line up on the banister for their food. All we needed to do was withhold their meals for 24 hours, and it took just 20 minutes to trap four cats. All four were recovered an extra day or two due to cold temperatures and have safely returned to the group. These cats obviously stick together and now they also have three feral shelters to cozy up in under a porch. We'll be back to round up the rest.
