we had one for five years and did not know it
you see for five years out front in the circular drive way we had a swarm in the lemon tree
by the 5Th year the wife said we must do something
so i talked to a beekeeper friend
he came by 24 hrs later? suprise they still clung to that branch
collected them into a deep Lang 5 times they would not stay.
we put a queen excluder on the front, worked like a charm.
then he showed where they came from.
under a rock in the rocks in the circular drive.
picked up the rock and said here. darn thing was hollow.
for 5 years this hive was here and it was small. the rock was actually coral and somewhat porous.
every time it rained they got wet and set em back.
those docile girls raised 7 swarms in 6 months
one was huge two deeps and two honey supers
the big swarms we see in the vids bigger maybe
insecticide need I say more, the bees on the cement in front of the hive was 3 inches deep in some places.
while in the rock this hive was smaller than a nuc after a clean dry place was provided they exploded
so in the cold cover the Lang with foam or poly, if it is small a small vent hole.
take a hot shower do the mirrors steam up same thing in a hive of any size
jay