W. GULLION 1950 Eulica Americana 315 Apr 19 Lake Tamescal, 420 ft, Alameda Co, Calif. Lake and all the flock moved towards I 22. The Ruddy Ducks seem to be afraid of the red-billed bird, while the Easts are all just curious. White followed her closely for about 15 minutes, till 5:30 p.m. but then lost interest. Now 5:35 p.m. G is following B% near K13. As B% moved in to M13, G/R came "pukking" down, charging from the island, and E? came moving S from O22, "poonking". B% moved out accompanied by a [illegible]. As the two birds some fellows throwing rocks at the two birds in the M territory scared them out to about L 16+14. As they stopped, they both turned and cachled or crowed at their tormentors. A chase from the SW area and p display at I 10. Now 5:45 p.m. a chase to I 36 by a bird from the N? pair. Now B% is alone, swimming to shore near F20. G/R is feeding at K8. E unmolested by the S pair. He went onto land when I walked up, then around the island coming out on the W side. For a moment another bird was more or less puruing him in charge position but I think it was his mate. Now 5:52 p.m. he gave a couple of loud "pukki" at K11. - Nest at I 6.1 has 2 eggs.