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 Mar., 1911 THE BLUE-THROATED HUMMINGBIRD 47 I knew it was not the Rivoli Hummingbird (Eugenesfulgens), as its notes were well known to me and are very different. I suspected that it was the Blue- throated Hummingbird (Coeligena clemenciae)and one day made sure of it by having one perch dose to me as I sat, motionless, on a stone. The dull blue throat (for it looks dull in a shadow) and general dark color identified it readily. A slight movement of mine frightened it. It flew away into the fir tree to its favorite twig, and began to "squeak". This was in 1897. In July, 1899, I located a nest built in an old Black Phoebe's nest on a rock overhanging a shallow pool. Near here, in May, Geo. F. Breninger had taken a set from a nest built among some ferns growing on a vertical rock. My set con- sisted of one egg, incubation well along. I attempted to get a photograph of the bird on her nest, but on account of the dense shadow the exposure was not a success. Although I made repeated efforts I failed to locate another nes until the sea- son of 1910. I made my headquarters at Berner's ranch in Ramsay Canyon. He has a flower and fruit garden, with sever- al small greenhouses for winter use. Hanging from a nail in the roof of one of these was the handle of a lard bucket, and built upon the lower crook was a many- storied hummer's nest, some four inches high. It contained one newly hatched young. The tell-tale "squeaks" of an unseen bird identified my find and by keeping out of sight, and quiet, I was able to get a good look at the female parent. Later I saw very frequently both parents feeding among the flowers and occasionally within arm's length of me. On May 22 I took a photograph of the young one in its nest and judge it was at least a week old at that time. On May 29, I again photographed it and the dif- ference in the length of its bill and the feathers of its wings and tail was very noticeable. On this occasion the young- Fig. 20. EGGS AND NEST OF BLUE-THROATED HUMMINGBIRD) BUILT ON BUCKET-BAIL SUSPENDED FROM CEILING INSIDE OF GREENHOUSE ster fluttered from the nest several times as I was attempting to arrange the ctmera for the exposure. The next day I left for town and did not get back again until June 16. I at once investigated this nest and found it empty. During the last few days of my previous visit, I had seen the female in a bunk- house that had formerly been used as a greenhouse. A piece of baling wire was wound around a nail in a rafter and formed a sort of hook. When I found the young one gone, I went at once to this bunkhouse and found the female sitting on