entered the nest, raised her head, opened her bill widely and made what appeared to be an effort to disgorge something. However, I could see nothing issuing from her mouth; but as soon as the action closed, she immediately applied her bill and tongue to the exterior of the nest as already described. As there would seem to be no particular object in returning to the nest carrying nothing, this action not only supports the inference of the use of binding material, but suggests that she had brought in her mouth something especially adapted to exterior application. One can only speculate at this point. She might have had a mass of cobwebs in her gullet, there to be treated with some secretion of her own, or she may have obtained some glutinous matter of vegetable origin, [illegible], or pitchy About 7 feet from her nest there is a nest of the bushtit from which the brood has left. She frequently uses this as a source of supply. It would seem to contain everything she needs, but her visits elsewhere are more frequent and she can be seen carrying spider webs, some of which become entangled with her head and the surroundings of the nest. At present she is giving most of her attention to the outside of the nest, applying the spider webs there; but she also stabs the parapet of the nest with her beak with nothing visible in her bill. (Injecting a binder or merely compacting the structure?). June 8th. (Sunrise 4:47, sunset 7:30). Thrashers still silent and incubating continuously, changing shifts without calls for relief. Rhody still devoted to his house-nest and leaving it for but a few minutes at a time. Sometimes only for a run to the magpie cage, a minute or two play with them, followed by quick return to the nest. Allen Hummer. The Allen humming-bird's nest is growing slowly. The bird works actively for half an hour to an hour, then absents herself for like periods. Most of her attention is still given to the exterior, and the bowl is still rough and irregular, although she occasionally shapes it by bobbing up and down in it and "shimmy- ing". This perhaps also compacts it. She was seen today apparently disgorging something over the edge and down the side of the nest, following the action by rubbing with her bill and tongue; but nothing could be seen issuing from her mouth. She gives little heed to spectators, not allowing her work to be interfered with, although she occasionally comes to peer at them. The male has been seen only once in the vicinity of the nest, and then he did no work, buzzing off shortly. At present the nest, in horizontal plan, is elliptical in form, not circular. 6:10 P.M. Dr. Grinnell, after seeing the bird at work this afternoon, for one brief interval, suggests that if the bird is using something to bind the structure, it may be plant nectar-- possibly from the diplacus (monkey flower) of which the bird is very fond. There is a lot of this shrub growing wild in the garden and this is its time of maximum bloom.