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As far as I know, it's called turtledove. You can see the pictures in wikipedia to see if it's the same as the one you mentioned before. You can only hear it chirp in the spring, you won't hear it twitter anymore after fall. Don't worry, it won't kill you anyway! Take care. . g9 Y8 P; D0 M$ a" O# r# m, Z$ J( I! S http://en.wikipedia.org/wiki/Turtle_Dove