Birds Nest on my Window Ledge

I wasn't a bird-watcher until these 2 birds decided to make their nest on my window ledge a week ago. No idea what kind they are; just surprised they're not regular city pigeons. Spotted 2 pearly-white eggs before I filmed this so now I can't wait to see them hatch.

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Birds Nest on my Window Ledge
Birds Nest on my Window Ledge