Small swarm or left behind bees?

[harvey]

I caught a large swarm last week at my dad's.  I had hung a dadent deep about 15 foot in a tree swinging from a rope.  Seems to be a real nice swarm and is building comb in its new hive with gusto.  Today a week later I put a couple swarm traps back out.  I decided to hang another one in same spot as before.  As I was hoisting it up all of a sudden there were bee's all over it again?  I looked and on the side of the tree was a few hundred bees clustered,  maybe more but definately not a large swarm.  Now I moved the swarm trap at night when I didn't see any bees flying.  Would these be left over bees that I didn't get the first time or could it be another small swarm?  How would I tell?  It is small enough that if they do stay in the swarm trap i think I will try and combine them with another hive that is still in single box.  I will combine them with the first swarm I took from that tree.  Does that sound like a good idea?   I burried the other swarm trap back in the woods on the edge of a swamp.  Not much sun back there but will be interesting to see if any bees come around the bait hive.

[riverrat]

my guess would bee bees left from when you moved the trap. although it could be a secondary swarm with a virgin queen take a look and see if there is a queen or signs of a queen.  if there is a queen you can add a frame or 2 of capped brood to help build it up to see if you can make it survive