large flock of birds flying in the sky

large flock of birds flying in the sky. The sky is overcast, with gray clouds covering the entire frame. Below the sky, there are two trees with dark green leaves, and a building with a white facade and a dark roof. There is also a billboard with text in Spanish that says, "La ciudad más linda del mundo," which translates to "The most beautiful city in the world." The birds are black and appear to be flying in a somewhat organized manner. The video seems to be shot from a low angle, looking up at the sky.