Abstract: A hunting blind comprising an elongated frame assembly of sufficient length to extend over a hunter lying under the blind incorporates a pivotal canopy frame with ground engaging, side support flaps. The canopy frame is hingedly connected to one end of a top frame segment of a base frame supported on foldable legs. An elongated spring is connected between the canopy frame and the base frame. A hunter lying under the frame assembly may exert slight upward force on the canopy frame as he sits up, so as to thereby cause the spring to rapidly pull the canopy frame to an open position over the top frame segment. An unobstructed field of vision and fire is thus presented to the hunter as he sits up.