The birds!

The sight of these pigeons massed on a building roof slightly gives me the creeps. It brings back memories of that scary Alfred Hitchcock 1960s horror-thriller film, The Birds. It was based on a 1952 story of the same name by Daphne du Maurier, and focuses on a series of sudden and unexplained violent bird attacks on the people of Bodega Bay, California.
This is a spooky modern reminder.