Today I had a look in the first trap box and found no eggs or capped broad. I did however see some capped drone cells and a fully capped queen cell. Can anyone explain this? I was thinking that maybe none of the queens made by the trapped out bees survived, but if this was the case how did I get the drone cells and the queen cells? I'm now starting to think that they swarmed but if this was the case wouldn't there be at least some capped brood?