Apr. 14. Sabine Ranch, I crossed the creek and worked across a flat and up a slope covered mostly with Spanish oaks and a few junipers. I located the bird singing the rapid tur ---- ; occasionally a slower cadence more like peer-peer-peer. Bird sang intermittently as though stimulated by song upstream, across, and down- stream. I followed along W unwilling to peg him as unmated. At 10:47 in dense juniper tree where he had been singing I heard a twitter & watched a bird forage now & then, mostly giving a soft siver out. The other bird flew into the tree but seemed wary of me; both worked up tree but he did not feed her, singing once in answer to S downlope to S & W. I left & noted their location as compass SE of mouth of tributary. That bird continued to sing rather steadily. I worked across the creek & back to the territory S of the one discussed above. The singing listened to now worked along a bench above the "floodplain", juniper-covered and crossed the first brook S. He sang there rather steadily from 11:10 - 11:15 answered chiefly by the bird to the S (one not investigated previously I judged). This bird sang for 5 minutes more as I chased a lizard. His song was peer -- most of the time. At 11:25 I approached the tributary to the N where I had shot at lone bird yesterday at this time. A thrasher was singing in oak-juniper patch between tributary and the burned clearing WIND STRONG FROM SOUTH I started along S bank of tributary and heard a thrasher N of this brook perhaps 40 yards upstream from