J.C. ZIEGLER 1950 Pineelared Warbler (Wilsonia pusilla) APR 28 Wind cat Canyon, San Diego County, Calif. 10:05 AM saw 0? in low trees & bushes 10ft over path along wooded HILLSIDE - NOTE: "TSCHIP" GIVEN EVERY MINUTE OR SO. NO SONG given no f seen but another Tschip heard nearby. Yellowish below, olive above black cap well up on head or not too notice- ble from side view May 5 9:00 AM singing in poison ivy chump then in live oak 15 ft up. Song - "TSWET - TSWET - TWSCET - TWSGHT TWSGE EGT TSWGG" on one pitch more or less. or. not just like those on camps which sing