Russian Birch Tree

Birch tree (betula alba)juice drinking and harvesting is an old tradition in Russia.
Usually there are two methods of doing this. One is to make a hole in the tree body itself then put a straw or pipe in the hole connected with a bottle. Usually the big bottle gets full of the birch tree juice from one tree overnight. Another way is to brake a branch and just insert the branch into the bottle, then tie or tape the bottle to the branch.
Sometimes, when the spring nights are freezing, one can see his harvest place turned into this state as on those photos. Then he gets a frozen birch juice.