KDixon 1950 Junco oreganus Apr 29 Univ Calif, Campus, Alameda Co., Calif. M singing from top rung of bleachers on E side of Memorial Stadium wididit wi-di dit — in fume, a dry rapid song. 9:08 AM May 12. Found junco in trap in last sed m E bank of brook in lower part of 1st draw W Poultry Lab (Titmouse Territory 32). Bird adult, M plumage. I banded it 4/-3958/ on right leg (no color band). May 16. 3:15 PM overcast, windy. At edge of brush + grazing land head of draw W Lab — juvenile (spotted breast) forced to fly by direct flight approach of adult. When juvenile perched on ground after short flight, another adult flew at it casing another flight. Third threat by adult caused young bird to fly out of territory of adults.