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BULLETIN OF THE COOPER ORNITHOLOGICAL CLUB. IO 5 tree to exanfine a nest of the Arizona Woodpecker which contained young, and while up the tree he noticed a likely-looking cavity in another limb of the same tree, so he chopped it open and found it contained a nest of the Olivaeeous Flycatcher with a single egg and shells of others--evidently a de- serted nest. The nest did not differ materially from two others which I am about to describe. While walking down a canon one day late in May, through SOlne thick timber, an Olivaee- ous Flycatcher, presumably a female bird, flew past me and I noticed some- thing in its mouth as it flew by. The mate followed shortly after and both birds lit on a dead oak stump not fifty feet away. I was well hidden and stood pereetly still. The birds seemed to be rather nervous and sat there for some time when the one with the build- ink material entered a deserted wood- peeker's excavation about six inches below where it had been sitting. Sat- isfied that the birds were only building I left the locality and returned again on the 4th of June expecting a fine set of four or five eggs, but to my disap- pointment the birds were not in sight BUFF-BREASTED Very few facts, if any, have been published regarding the breeding habits of this rare little flycatcher. The birds are even less numerous than the Sul- phur-betlied Flycatchers, their range within the United States being about the same. I first met with the birds in I896 during that eventful trip made from Los Angeles by wagon, a distance of about 7co miles, the party consisting of W. B. Judson, H. G. Rising, H.S. Swarth and myself. ?t. re expected to meet this flycatcher shortly after our arrival in the Huachucas and kept a sharp lookout for them all the time, but were for sometime disappointed, until finally one afternoon I was taking a stroll up the canon above the camp when I spied a small flycatcher sitting on a dead twig in the top of an oak tree on the hillside. The bird was new to me and I at once tcok it forKranted that this was the Buff-breasted Flycatch- er. I stood behind a tree watching the bird until the light grew dim and I was and when 17 looked into the nest 17 found it deserted. The two eggs which it contained were almost entirely hidden by the disarranged nesting material. Needless to say 17 took the two eggs with the nest and was glad to get them. The nest was composed ahnost entirely of rabbit's fur with a few tail and wing feathers of jays sticking upright around the outer edge. The nest was ten in- ehes below the entrance to the cavity and fifteen feet from the ground; eleva- tion about 6,500 feet. The eggs very much resemble those of the Ash-throat- ed Flycatcher but are much smaller and the markings are finer. Mr. F. C. Wil- lard of Galesburg, II1., examined a nest of this species on the same date, it be- ing placed in a natural cavity in the trunk of a sycamore tree forty feet up. This nest contained four fresh eggs but unfortunately two of the eggs were broken while chopping into the cavity. The nests did not differ from the last and the eggs from the two nests are scarcely distinguishable. Counting the egg of this species taken by my friend in '98, there are only five eggs now in existence of the Olivaeeous Flycatcher. FLYCATCHER. obliged to make my way back to camp as 17 had to pass through a narrow and very rocky gorge known as "The Box," -not a very safe place to wander around in after dark. When I reached camp that evening I reported what I had seen and all were much interested so on the following morning June 5, I896, all four of us made our way to the place where I had seen the flycatcher, but the bird was not in sight and we were about to make our departure when I spied a nest in a pine tree just above our heads. I at first thought this was the flycatcher's nest so I soon had my climbers on and was up to the first limb where I stop- ped to rest and while doing so my eyes fell on another nest in the same tree- and not far from the one I had seen from the ground. The last nest looked more promising and as I sat there look- ing at it I noticed a very small tail sticking just over the edge of the nest. It did not take me long to climb up