#stage {
	width: 900px;
	height: 450px;
	margin: auto;
	position: relative;
	background-image: url(fieldBG.jpg);
}
#bird1 {
	position: absolute;
	top: 10px;
	left: 10px;
}
#bird2 {
	position: absolute;
	top: 50px;
	left: 250px;
}
#cat {
	position: absolute;
	bottom: 0px;
	left: 150px;
}