Petelka 1946 Oct. 4 railroad tracks. white-winged doves, mourning doves, a Myiarchus flycatcher, loggerhead shrike, cactus wren were collected. Oct. 5 still detained in Empalme. Leopold and Russell went collecting and obtained 2 cardinals, a gila woodpecker, a cactus woodpecker, a oven (probably Bewick), a thrasher (tendirei), a lucifer hummer, a shrike, and a mourning dove. Oct. 6. Spent most of the morning walking along the bay- shore near Empalme. Saw cormorants, osprey, and juvenile American Egret. Returned to the r.r. station near noon time. The train left shortly after our return, proceeded as far south as the Rio Yagui, and after an hour or two of waiting, we returned to Empalme for the night. Oct. 7. Left Empalme again at about 8 in the morning, but this time proceeded over the newly laid tracks over the Rio Yagui and in Ciudad Obregon. Oct. 8 Travel southward continued; reached Culiacan at noontime and Mazatlan late in the evening. Oct. 9 Made preparations to leave Mazatlan by truck today, but were forced to wait a day at least because our baggage hadn't arrived from Empalme yet. Spent time both last night and today talking to J.F. Ferreira, a resident Portuguese who speaks English well. Up to the time of the recent war, his business was leading and maintaining hunting trips for wealthy Americans mainly in Sinaloa.