through coverage of the passing birds. In trying lenses of 50mm, 152mm and 300mm focal lengths the 300 mm was found to provide the largest image however presented difficulties in finding birds in its very small field of view. The extraneous movements made by the roll & pitch of the ship plus small movements of the photographer often made rotation of a bird in the field difficult. Aside besides being prone Very vivid on the screen. A speed of 48 FPS was chosen to slow the motion of the birds plus reduce unavoidable movements. A faster speed would be desirable for reasons of clarity in the final result. A telephoto lens of a longer focal length would be most ideal and particularly one of a zoom design. This would allow the bird to be "picked up" easily and more quickly in the field, allowing greater coverage at close distance. It would however emphasize more greatly the extraneous movements and therefore should be used with a camera having a greater range of speed. A Miller Fluid Head & Tripod were used and found to be most satisfactory. A friction head and metal tripod would surely prove to be nearly useless. Weather Conditions on November