Re: can anyone explain what happened?
The nurses will stop feeding the queen, she has to eat on her own, and they won't let her lay and make her move around. She goes off laying and the ovaries shrink. She gets skinny so she can fly distance. Sometimes she drops or somehow gets seperated from the main swarm. I've seen also a queen with a few bees on the ground when a swarm issued. She had dropped out to the ground. I grabbed her and set her on combs in a box and the swarm came to the box.
20+ years, raise my own queens, feed when needed. I treat, but have not perfected varroa management yet.