Thousands of crows circle above hospital in Inner Mongolia

Flocks of birds fill evening sky in eerie scenes in Thailand

Astonishing sight shows massive flock of birds moving to warmer areas

Huge flock of birds flying in the sky

Flock of birds seen in impressive murmuration over Bangkok homes

Annoyed factory owner hurls firecracker at flock of birds to drive them away

Paramotor flying captures flock of birds flying over rice field