P. DeBenedictis 1964 Feb 15 Linda Cavallos, Espanola (Hood) Island, Galapagos. managed to move. One bird working in a gravel area dug a pit 2" deep, 3" long, & 2" wide moving several pair sized stones. The largest (111 gm) O-shaped was on a small mound, and the bird rolled it off with no trouble (1/2" above the resting spot), & then kicked away all the grass of the mound. There was considerable seed and grass stems under the gravel, and I could see the birds taking what seemed to be the core of grass stalks. The action of this bird was easy to see. It placed its fore foot against the edge of the pit and then ran, moving one foot after the other in rapid succession 4-6 & +10 times, sending small (10-20 mm.) pieces of gravel flying the length of its bird (6") away and an inch off the ground. Another bird with a deformed bird (which I collected) rolled over a rock which weighed between 300-400 grams. This rock was rounded out on level ground. Another flat rock (140x90x60 mm., 358 gm.) lying flat on level ground was completely tipped over, & Dr. Beutholnew got a picture of one bird in the act of picking over a rock. The stomach of this bird contained many small (? grass) seeds and some 1/2" fragments of grass stems plus lots of fine black lava sand (1-1mm. in diameter). I did not see finchinos feeding in this manner here and did little observation of mockingbirds. Collected a pair of Nesomimus on the low brush along the beach here. Their stomachs contained many insect