Abstract: A portable hunting blind for attachment to an aiming device, such as an archery bow, a firearm, or other hunting device. The portable blind is a camouflage screen supported by a frame of stay rods extending from a central block. The central block has a first set of sockets for receiving the stay rods in an orientation in which the screen is extended and a second set of sockets for receiving the stay rods in an orientation in which the screen is collapsed. The blind is mounted to the bow or other aiming device by a mounting frame that allows the support frame and camouflage screen to be folded out of the way when carrying the aiming device. Alternative mounting frames are shown for a bow, for a firearm, and for a camera.