orange sacs Sooty Grouse Male Displaying Pumping Strutting with Orange Throat Sacs Inflated by Pronghorn Productions in Bird , Galliformes , Grouse , Other Grouse 4k (4096x2160) – $79 Full HD (1920x1080) – $69 HD (1280x720) – $59 Add to Cart Checkout Added to cart Sooty Grouse Male Displaying Pumping Strutting with Orange Throat Sacs Inflated $79