RIVOLI'S HUMMINGBIRD 321 



a lining of the softest and downiest feathers, while the exterior is elaborately 

 covered with lichens, which are securely bound on by a network of the finest silk 

 from spiders' webs. It was saddled on the horizontal limb of an alder, about 

 twenty feet above the bed of a running mountain stream, in a glen which was 

 overarched and shadowed by several huge spruces, making it one of the most 

 shady and retired little nooks that could be imagined, * * * The dimen- 

 sions of the nest are as follows : depth, externally, 1.50 ; internally, 0.75 ; greatest 

 external diameter, 2.25 ; internal diameter, 1.15. 



Major Bendire (1895) received two nests from W. W. Price, taken 

 in the Huachuca Mountains, Arizona: "The best preserved one of the 

 two measures 2^^ inches in outer diameter by 2 inches in depth; its 

 inner diameter is ly^ by li/4 inches in depth. It is composed of soft, 

 silky plant fibers, and is thickly coated exteriorly with small pieces of 

 lichen, and lined with fine down and one or two soft, fluffy feathers, 

 apparently those of a species of Titmouse. It resembles the nest of 

 the Ruby-throated Hummingbird very closely in its general make up, 

 but is naturally considerably larger. It was found by Mr. L. Miller 

 on June 22, 1894, at an elevation of about 7,000 feet, saddled on a 

 walnut branch about 10 feet from the ground, and contained one 

 young nearly able to fly." 



Apparently this hummingbird does not like to have its nest location 

 observed, for, on May 28, 1922, as we were walking up through the 

 narrow, roclcy canyon known as "the box," we happened to see a par- 

 tially built nest on a horizontal branch of a maple overhanging the 

 stream. While we were watching it the female came to the nest with 

 building material and evidently saw us. On our return, a few hours 

 later, we were surprised to find that the nest had been entirely re- 

 moved, and it was never again rebuilt in that same spot. 



On the following day we found another nest in Miller Canyon, in 

 the same general region in the Huachuca Mountains. It was about 80 

 feet from the ground, saddled on a horizontal branch of a maple 

 over the trail, and so far out on the branch that it could be reached 

 only with the aid of a rope. My companion, Frank C. Willard, suc- 

 ceeded in securing it for me, however. It was a beautiful nest, much 

 like those described above, made of plant down and other soft sub- 

 stances, covered with lichens on the outside, and all bound together 

 with cobwebs. This, and other nests that I have seen, though sug- 

 gesting those of the rubythroat, are proportionately broader and not 

 so high. 



Mr. Willard records seven other nests in his notes, all found in 

 the Huachuca Mountains. Five of these were in maples at heights 

 ranging from 20 to 55 feet above ground; one was 40 feet up on a 

 horizontal branch of a large pine and 20 feet out from the trunk; 

 the other was placed 40 feet from the ground in a sycamore near the 

 tip of a branch at the top of the tree. Of this last nest he says : "The 

 nest appeared to be built in an old western wood pewee's nest, and 



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