The children get to use up rainy day energy and get some exercise while learning a bit about bird migration. I've played this in both the gym and in the classroom. This kit contains 4 numbered nest signs, 4 numbered egg cards, an introduction to bird migration, how to play the game and a music suggestion. The nests and eggs are in colored and in black and white versions. All you need to add is a way to hang the nest signs and a way to play your choice of music. The music I suggest is Save the Wildlife by Mannheim Steamroller.