Just got my 4th feral swarm this year. 72 degrees F sunny after a night of rain. Clinton County, Indiana. Easiest swarm call out yet. Swarm was on a pine tree small limb that with the weight of the bees brought it down to about 1' off the ground. Clipped the limb into a box, duct taped the box and brought them home and dumped them into their new hive.
I would guess 3 lbs.