changeTry changing your linelast batcher draw in GameRenderer class as batcher.draw((TextureRegion)AssetLoader.birdAnimation.getKeyFrame(runTime), bird.getX(), bird.getY(), bird.getWidth(), bird.getHeight());to
batcher.draw((TextureRegion)AssetLoader.birdAnimation.getKeyFrame(runTime),
bird.getX(), bird.getY(), bird.getWidth(), bird.getHeight());