I bought a clear Bird Feeder which waas to attach to my Fire Escape window with Suction cups. It was for the sparrows and small birds . Yeah right. The first day a Pigeon knocked it down. T much weight. I then put it standing on my Fire Escape and then the fun started. Tons of Pigeons. Alot. I am not allowed to feed them especially on a Fire Escape but they are always so darn hungry !!! LOL. I also put down fresh water 2x a day and they guzzle that too. Doves visit but it's Pigeonville . I am waiting for the Landlord to issue a warning but until then Eat up .