Flock!

Flock! (stylized as FLOCK!) is a puzzle video game developed by Proper Games and published by Capcom for Windows, PlayStation Network and Xbox Live Arcade. It was released for Microsoft Windows on April 7, 2009[1] through Steam[2] and Stardock’s digital distribution service Impulse,[3] Xbox Live Arcade on April 8, 2009[1] and PlayStation Network on April 9, 2009.[1]