Videographer Paul Parker filmed seagulls flying past his window in Cornwall, England, for an hour. He compressed the hour into the short film you see above. This is not a video for ornithophobics, because, wow, are there a lot of birds here.
In 1856, seabird guano was an in-demand fertilizer, so the the United States Congress passed The Guano Islands Act. This legislation was a precursor to American imperialism, as it allowed citizens to claim bird-crap-covered islands in the USA's name.