P. DeBevecilu 1964 Craques Feb 19 Punta Suarez, Isla Espanola, Galapagos. wings are laid back in position then toss side to side 3-6 times, c. 4 times/sec., and the tail is vigorously wiggled out the same times at same rate. Birds standing with its bill open and head forward a little down to all have the tongue thrust forward a little but not raised noticeably. A quill persisted in landing on a ledge near a Blue-footed Booby which would point its bill at the quill and shake the head up and down until the quill flew off. Saw this half a dozen times. Quill did not try to attack the Booby, or cowl. One bird closed another with the bill open, head forward, wings out; 2nd flew off. The 1st stopped and then looked at its feet. This seems to hide the bill from above & import once up poses the rope lines. Comps ? 2 birds landed one about 1 foot, one the other on a ledge about 1 ft. above the other quill. Both pointed closed bills at the other for about 1½ seconds, carpal out of their feathers cover butt against the body, and dropped from the higher nest position. One of the two then dangled at