ORGANS OF SOUND, 
87 
hive and a loud ‘ Huumm ’ is heard, it is a sign that 
the bees have their queen and sufficient food. The 
loud ^ Dzi-dzi ’ is heard when both stores and bees are 
dwindling. The loud ‘ Dziiiiii ’ will be heard when they 
are too cold. ‘ Huuuni ’ is produced by queenless 
stocks both in summer and winter. A loud ‘ Wuh- 
wuh-wuh ’ is only heard when breeding is going on, 
but never when the hive is queenless, or has an 
unfertilised queen. When water is being collected 
they produce a loud ‘Usiiir,’ and young bees playing 
outside the hive utter a loud ^Shu-u-a,’ but as a swarm 
leaves the hive ‘ Shiusi ’ is produced, the normal sound 
of a swarm being ‘ Ssssss.’ ‘ Brr-brr-brr ’ is heard when 
drones are being expelled. And the ^Tu-tu-tu’ is 
known to every bee-keeper as the sound produced by 
the just-hatched young queen, which is answered by 
^ Qua-qua-qua ’ of those queens still enclosed in their 
cells. Besides these there are some dozen other sounds 
produced, differing both in tone and in intensity. 
