Kent,
I had a swarm on May 1 that came back due to a clipped queen. It was my
own fault; I should have supered earlier. It was a two-queen hive that had
wintered with a single over a double and I’d combined them to requeen and
made up another nuc with the bottom deep. Cool weather and lack of time
kept me from getting on more supers. They sure were hanging out!  Of course
I lost the queen, but I had
another on top ready to go.
Early supering and nuking seems to do the trick. I've had various Carnies
since '76. Tried the rest, stick with the best!  NWC homepage:
http://iris.biosci.ohio-state.edu/honeybee/breeding
Breeders: Sue Cobey: [log in to unmask]
Good luck,
Charles Andros
Linden Apiaries since 1973
Walpole, NH
Residence: Latitude: 43° 05’ North, Longitude: 72° 21’ 15" West, Elevation
1200’
Keeper of 41 two-queen colonies for honey, pollen, propolis, pollination,
nuclei, beeswax, apitherapy, and education.