of which was found building on May 27th. They shot the male bird, which was sitting on the eggs, and also shot two White-throated Swifts, June 8. In the morning Will and I skinned the birds shot yesterday. The Swifts were females; one had laid part of her set; the other would not lay for some time yet. We had intended to try for their eggs but thought it a little early yet. In the afternoon, Will, Howard and myself went up around the box canyon. We saw several Swift nests that we may be able to get at, and shot two of the birds. Howard took two sets of Plumbeous Vireos, and shot the parent birds. We also shot a Buff-breasted and an Olivaceous Flycatcher. Found a nest of Cone's Flycatchers and saw two Stephen's Vireos which acted as if they had a nest but we were unable to find it. Will skinned the birds that were shot and said that one of the Swifts, and the Olivaceous Flycatcher, each laid their set. June 9. We spent almost all morning in trying to get at some Swift's nest. Howard, by letting himself over the face of the cliff on the rope, managed to get to where he could look into a nest, and saw an egg, but could not reach it. In the afternoon I stayed in camp. The others went back to the Swift nests, and this time Howard managed to get the egg, with spoon fastened on a stick. The egg was outside the nest lying on the