106 University of California Publications in Zoology. \Vou-.5 
family of five appeared near camp, circling about and alighting 
on the bare branches of a dead pine, and uttering their usual 
full warbling notes. 
Petrochelidon lunifrons (Say). Cliff Swallow. 
Cliff swallows were noted in rather small numbers in Bear 
valley. A colony had built their nests on the trunk of a live 
yellow pine near Bear lake, and through the kindness of Prof. 
Tf. B. Perkins I am able to present the accompanying photo of it. 
(See pls. 18, 19.) Several nests were seen on a mill-building at 
Gold mountain, and a few birds were nesting on the rocky wall of 
the lower Santa Ana canon, near the narrows. Many cliff swal- 
lows, mostly young-of-the-year, were coursing over the meadow 
near Seven Oaks, July 15, 1907; many were perching on bushes 
on the hillsides, twittering loudly. A great many were seen mi- 
erating at Cushenbury springs August 10 to 14, 1905; and the 
last for the season at the north base of Sugarloaf, 7500 feet eleva- 
tion, August 20. They were not seen at a greater altitude any- 
where than the last named station. 
Hirundo erythrogaster palmeri Grinnell. 
Western Barn Swallow. 
Barn swallows were seen only after the fall migration had set 
in. At Cushenbury springs, at the desert base of the mountains, 
August 13 to 14, 1905, several were seen flying about over the 
pasture, and an immature male was taken. Again, on August 
21, I saw three barn swallows flying southeast over the cienaga, 
7500 feet altitude, at the north base of Sugarloaf. 
Tachycineta thalassina lepida (Mearns). Violet-green Swallow. 
Violet-green swallows were more abundant than any other 
species of swallow in the region covered. They were not seen 
above nor much below the Transition zone. Large numbers were 
nesting in the vicinity of Seven Oaks and Fish ereek, where nests 
were examined containing young. These nests were, without 
exception, in old woodpeckers’ excavations in dead pines. One 
nest on the Santa Ana close to the mouth of Fish creek was looked 
into July 11, 1907. It was a very scanty lining of weathered 
