Swarm of blackbirds descend on man's garden

This man looked out of the window and noticed that there were a lot of birds gathered in his backyard.

When we say a lot, we mean a lot! The man appears to have a swimming pool in his back garden and the birds cover the entire surface of the water and all the of the grass surrounding the pool.

See also: Masking tape saves kiwi chick

See also: Parrots slow down traffic by moving road cones

It's not clear why the birds are there and it seems the man filming the footage isn't too sure either.

In an attempt to see what was going on he decided to be brave and open his window... Big mistake.

As soon as he did the birds all left their posts on the ground below and began to fly directly towards him.

Luckily he closed it in time and the birds disappeared. Only momentarily though as they came racing back almost straight away.