July 10. In the morning Will went to the Fort, Rising went up the canon, and Holstead and myself down the canon. In the large oaks and sycamores at the mouth of the canon, we saw a number of Nighthawks and shot four. They were all in the trees sitting lengthwise of the limbs. We saw several Dwarf Cowbirds and I got two males. I also shot a Pigeon out of a flock of about twenty that were feeding on the acorns; a Bridled Tit and a Nutting's Flycatcher. Rising shot a male Ruby-throated Hummer, a Virgina Warbler, two Olivaceous Flycatchers, and some other birds. The Dwarf Cowbirds are exceedingly wild. July 11. After skinning what birds were brought in yesterday, Will and I walked down the canon, but the others went over to Miller's Canon. We saw two pairs of Dwarf Cowbirds but they were very wild and we could not get within 200 yards of them, as they were in an open field. We shot a lead-colored Tit and a Nighthawk. The others brought back a Band-tailed Pigeon, two Arizona Woodpeckers, two Baird's Wrens, two Ash-throated Flycatchers, two Cane's Flycatchers, an Hepatic Tanager, a Scott's Oriole, a Painted Redstart, and a Bridled Tit. They saw a good many Pigeons.