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May, 1913 SOME FURTHER NOTES FROM THE TAHOE REGION 113 usually small complement of four eggs. Strange to say, two of these were in- fertile and two were pipped. The day following, a nest of the Tree Swallow (Iridoprocne bicolor) was noted, with seven fresh eggs. It was built in a cavity in a pile of a ?vharf along the lake shore above deep water, a favorite nesting site here for this species. In this locality seven eggs is the usual complement although from all I have been able to learn five is the common number laid in the coast region. From this it might appear that a comparison of the number of eggs laid by the same species in high and lo?v altitudes would be worthy of investigation. In those localities where seasonal conditions do not allow the raising of a second brood it may be found that this is partially compensated for by the increased size of the initial complement. June 6 was spent at A1-Tahoe marsh where the customary nests of the Yel- low-headed Blackbird (Xanthocephalus xanthocephalus), and of the Red-winged Blackbird were noted. In previous articles the latter was recorded as .4gelaius phoeniceus neutralis, which was the label given by the California Academy of Sciences. I have had several of the skins recently examined by Mr. Harry S. Swarth of the Museum of Vertebrate Zoology who writes as follows: "The black- birds are exactly like specimens that Taylor collected in Humboldt County, Ne- vada, and which he has rather hesitatingly referred to .4gelaius phoeniceus sono- riensis. They are certainly not neutralis of southern California, which has a much heavier bill." Besides the nests of the blackbirds I found one in which I. was especially in.- terested, that of a Wilson Phalarope (2?teganopus tricolor). This, a frail affair of grasses, w.as placed on the ground among thick grass near the edge of a fast flowing slough, and contained a single fresh egg. The photograph was taken on June ?9, at which time the nest held four eggs well advanced in incubation. It was necessary to cut away some of the thick grass in front in order to have the nest and eggs show on the plate. Returning to Bijou by Trout Creek, two nests were found of the Audubon Warbler (Dendroica auduboni), which well illustrate the wide variation in Sier- ran nesting dates. One nest twenty-five feet up, on the extreme end of a limb of a giant lodgepole pine, was newly built, while the other, placed against the trunk of a small lodgepole pine, fifteen feet up, held four young ready to fly. On June 9, a nest of the Ruby-crowned Kinglet (Regulus calendula calen- dula), first found on May 27, was collected with the small complement of five eggs. The nest, placed but ten feet up in a small lodgepole pine, is a gem of bird architecture. Plant fibers, mosses, plant down and fine bits of bark. are daintily woven together and warmly lined with feathers and a few horsehairs. The nest is semi-pendant, broad-brimmed and thick-walled. The eggs are creamy-white, faintly clouded, chiefly around the larger end, with light brown. The female was collected with the set, insurinj? positive identification. The Ruby-crowned Kinglet is not uncommon in Lake Valley (elevation 6620 feet), but is more abundant at higher elevations such as Summit, Forni's and Cold Creek Meadows, all of which lie between 7000 and 75o0 feet altitude. To find a nest of these melodious midgets, however, is by no means easy, for their diminutive homes, tucked away among thick foliage, are difficult to spy, and sitting birds are rarely flushed. The Kinglet frequents the vicinity of streams and meadowlands, and the song is one of the most beautiful of all to be heard in the Sierran woodland. Beginning'with a quick and melodious succession of '"chill, chill, chill," it runs faster and faster and ends by carolling out into those