Browsing through Flickr I found this picture by a Puerto Rican photographer. Instantly, two things came into my mind:
1- Hitchcock's movie, The Birds.
2- Memories of Old San Juan and the swarms of pigeons that live there.
I used to love chasing those pigeons as a child. There is even a little park called "El parque de las palomas" (Pigeon Park), where you can feed them, and if you are a little kid, chase them all over the place like I used to do.