I have a nuc sitting on a stump in my yard baited with comb Sunday (Mothers Day) morning. By mid-day there seemed to be some interest and by dinner they were moving in. I checked this morning and they are definitely in defensive mode so patiently waiting a couple of days to check them out and move them into a hive.
Then I went out to take a look at my traps this morning. Both of them have a lot of activity, and one of them sure let me know I wasn't welcome when I tried to take a closer look at it. I am calling both of them a success and will remove them in a few days to install into hives.
Trap #1
Trap #2
Since yesterday was the first warm day we've had after a week of rain and cold, I can only guess that they all arrived yesterday.