Hi All

> self-opening and self-closing vent

I have seen this at first hand in a full colony observation hive.

There were vents in the top made of perforated metal that the bees sealed
with propolis when they did not want it, but they re-opened the holes when
they needed the ventilation.

I am not particularly surprised that they could do this , but I would like
to understand the mechanism whereby they 'know' where a blocked up hole is
so that they can unblock it.


Best Regards & 73s... Dave Cushman, G8MZY
Beekeeping & Bee Breeding Website...
http://website.lineone.net/~dave.cushman