Field Notes Doug Bell Location: U.C. Berkeley Campus October 19, 1988 - cont "2 guide its true size. But it then it "tightened up", flattening out its feathers. A small head on thin body was clearly seen -> *definitely a ? (tiereel). After a couple minutes, the tiereel walked along the ledge and picked up some remain of what looked like a small bird. White throated Swifts were coursing about, and the tiereel observed these intently. John Trachet believes he saw the peregrine picking at some black & white feather clumps of a swift. I could only see black feathers. In any case, the tiereel did not have any sort of a full crop. We watched the tiereel pick at its food remains on the ledge for a few minutes, then it walked a few more steps towards the NE corner. No bands or markings or visible on any legs. A wild bird. We watched the bird until 12:08, then left. The bells in the tower did not bother it in the least. At 14:00 I went back up to the 10 floor balcony of Evans Hall. The tiereel was now sitting on the stucco railing that is confluent with the 4 spires. It is the last human - access area, but of course, its closed to entry. The tiereel was devouring a bird. After a while I figured out it was eating the meaty pelvis and drumstick portion of a pigeon. Tail of pigeon still attached lots of guy's white feathers. It plucked the white vent feather. The tiereel already had a substantial crop. While it was eating I Got views of the peregrine from all sides. Its a very dark - brown bird on the back. Only faint lt. brown wing covert fetchings. Quite evenly dark brown.