Bee's cooling system

Flowers and bee's: Today I visited in Pekka's place. Pekka has a bee farming hobby. Today was the hottest day during this summer. Pekka asked me to take photos how bee's cool their nest. They gether in line, hold still and move their wings. This line cools up the whole nest in hot days. Extra pictures may give you a hint how bee's nest cooling system works.

There is one shot of male bee (drone) and they are keep alive until they get the queen pregnant.

Last year shot in Pekka's bee place.

3rd flower macro of the day is in extra pictures.