After crossing the river Gambel's Quail became exceedingly numerous, and we saw many flocks containing hundreds of birds. He also saw many Nighthawks, Great Blue Herons, Red-tailed Hawks and Ravens. He travelled long after dark, searching for a suitable place to camp. He finally found a place, near a ranch, in a huge irrigating ditch, which must have cost a fortune to construct, but which at this time was perfectly dry, and had been so for a long time. March 22. Travelled all day over country similar to that we passed over yesterday. Gambel's Quail were numerous everywhere, and we also saw flocks of Sand-hill Cranes, some Nighthawks, Arkansas Kingbirds, and Arizona Crested and Vermilion Flycatchers. O. H. Howard took a set of Albert's Towhee. March 23. Drove to Agua Caliente or Hot Springs. Birds became more common, principally along the irrigating ditches, where we saw Gambel's Quail, Vermilion Flycatchers, Albert's Towhee, Wilson's Snipe Killer, a small Rail, and some Least Sandpipers. He also saw several flocks of Sisk Bunting, but they were exceedingly wild and we did not get any. The water at the springs was quite warm, and there was a good deal of it. March 24. Drove about twenty-two miles from Agua Caliente, and camped on the bank of the Gila River. He had intended to cross the river and go to Maricopa, but we heard that the road was