1968 Pipilo fuscus 11 April U.C. campus Pair in LSβ court evidently newly forming. M.chipping, and running this into chip song! He repeated the 3-4 times, then gave 2 plain pair-reinforcement notes. Then again, 2 chip songs, & pair-reinforcement notes. I went shut into coffee, and saw the pair moving in and around the Tap-drawn tree. The M (fanger) was quiet then, but kept moving after or on toward the other end, head lowered, with just a weak aggressive stance when passing. This behavior seen in newly settling or forming pairs of both members at a patch following territorial skirmishes, especially in pre- or early breeding season. 22 April Morning Chipping Chipmunkiganat 4:40 a.m. PST. 23 April Territory around back yard occupied for first time. 24 April Local bird participating morning chipping chorus; moving in back yard often. Later, ca-9 a.m. heard pair-reinforcement note for first time.