===================================================================
--- original.js
+++ change.js
@@ -1,7 +1,21 @@
 /**** 
 * Classes
 ****/ 
+var Animal = Container.expand(function () {
+	var self = Container.call(this);
+	var animalGraphics = self.attachAsset('animal', {
+		anchorX: 0.5,
+		anchorY: 0.5
+	});
+	self.speed = -5;
+	self.update = function () {
+		self.x += self.speed;
+		if (self.x < -animalGraphics.width / 2) {
+			self.destroy();
+		}
+	};
+});
 // Assets will be automatically created and loaded during gameplay
 // Bird class
 var Bird = Container.expand(function () {
 	var self = Container.call(this);
@@ -67,8 +81,15 @@
 
 /**** 
 * Game Code
 ****/ 
+function spawnAnimal() {
+	var animal = new Animal();
+	animal.x = 2048 + animal.width / 2;
+	animal.y = Math.random() * (2732 - animal.height) + animal.height / 2;
+	obstacles.push(animal);
+	game.addChild(animal);
+}
 var bird = game.addChild(new Bird());
 bird.x = 2048 / 4;
 bird.y = 2732 / 2;
 var obstacles = [];
@@ -122,9 +143,9 @@
 			coins.splice(j, 1);
 		}
 	}
 	if (LK.ticks % 120 == 0) {
-		spawnBird();
+		spawnAnimal();
 	}
 	if (LK.ticks % 240 == 0) {
 		spawnParrot();
 	}