R.K.Selander, 1953 8 Feb.6 Baja California, Mexico At sunset I arrived at my former camp site 15 miles north of Socorro. The two American families were still there. One of the men reported having shot 8 Black Grant and 15 Long-billed Curlews on the previous day. I saw one of the curlews. Feb.7 Heard a cactus wren singing on the hillside near camp. Cactus covered slope. One of the Americans mentioned visiting a canyon 2 miles east of here which he described as "full of cactus - the most varied" he had ever seen. At 9:00 I left for Ensenada. Arriving there I had the tie repaired and continued northward. The cactus association of any extent ends just at San Vicente - this would be a good place to draw the distributional line. At Tijuana I turned eastward following the Mexican Highway # 2 through Tecate. The vegetation around Tecate and west of there is [illegible] similar to that around Tijuana - low desert scrub or sage. Much of the land is farmed. It is very hard for me to see how cactus wrens could occur in this area, yet there is a record 20 miles east of Tijuana. Beyond Tecate the road (which is paved and in excellent condition) climbs up into the north end of the Sierra de Juarez. The vegetation is