Yes they pipe to locate one another,even the virgins still in the cells pipe.Mated queens also pipe in certain situations.I have found if they pipe they tend to swarm,even taken virgins that are piping and put them in small mating nuc,and had them swarm.
When colony waits for swarming, virgin queens stay in their cells untill old swarm has left the hive. New queen may be 10-15 and ready to fly.
If new queen merely emerge, it is soft, light color and cannot fly. It takes 1-2 days before it is hard enough to fly.
When swarm leave and you open the hive, you heard piping. Some queen have come out. Many are still in their cells. You may catch about 10 ready queens from hive. You heard when they walk quickly on combs and piip.
When you put a new queen into a new hive. often queen start to pipe. It put her storax against comb and give a lor sound. Probably it calls another queens to fight.
If colony does not swarm, first emerged queen is in a hurry to mark other queen cells and workers destroy cells.
Meaning of piping to me? - Nothing, because I am not listening them when they are making their play. Mysterious - no, not to me. I swear often to my hives and perhaps they think that I am piping.
Actually bees make many kind of sounds but researchers have not revieled out, what is meaning of sound communication.
[QUOTE When i have virgins piping,i remove them. Put in a new mated queen is best. ][/QUOTE]
Are you saying that when making up a Nuc or full Colony and inserting a queen, if the queen (virgin) starts to pipe then you remove her? If so why?
Surely your not giving that queen a chance of mating and heading a colony.
IMO piping does not mean there is anything wrong.
Looking forward to your reason, as you have had experience of this.
Yes,from my experiance of these queens,they tend to come from the more swarmy hives,which i am trying to reduce,Most of these hives seem to have lots of queen cells.If i leave them in a large hive,they more often than not swarm,with a bigger swarm than would have gone with the old queen.Even putting them in a nuc,they will often swarm,like a small cast.I don't know the reason why,just what i have found in my experiance to be true.In hives that tend to produce less cells,i have not noticed so much of this piping,but that does not mean it does not happen, but it is certainly less.