682 PROCEEDINGS OF THE ACADEMY OF [Sept,, 



females than in the males. The Colony specimens approach hairdi, 

 but the others are lucasanus. A specimen in the Academy's collection 

 obtained in June, 1852, by Col. McCall, in southern California, is a 

 marked example of lucasanus. After examining a number of these 

 birds, I can see no reason for elevating the Lower Calif ornian race to 

 specific rank, as has recently been done by ]\Ir. William Brewster. 

 ''These birds were extremely wild and difficult to secure." 



Calypte COStae (Bourc). Costa's Hummingbird. 



Two specimens from Cocopah Major Mountains. 

 "These tiny birds were breeding, one of the specimens shot showing 

 bodily marks of protracted incubation on the 21st of February." 



Selasphorus rufas (Gmel.). Rufous Hummingbird. 



One example from the Cocopahs. 



"This bird was going through its aerial love antics in February with 

 all the energy of a midsummer madness. This was the more remark- 

 able as all other bird and animal life was in its deepest winter lethargy 

 during my entire stay at this camp, and the temperature frequent!}^ 

 fell to near 45°. This coincides with the actions of riifus in the 

 vicinity of Puget Sound, as observed by me in early April, 1903, 

 where I found it breeding though frost frequently formed at night." 



Myiarclius cinereus (Lawr.). Ash-throated Flycatcher. 



Specimens from Colony and Cocopahs. 



"Of uniform but scanty distribution. They nested on the tops of 

 the densely wooded' cottonwood and willow bottoms, uttering frequent 

 ejaculations as they darted upward for insects. Generalh- in quar- 

 tettes, sometimes five or six within hearing." 



Sayornis saya (Bonap.). Say's Phoebe. 



One from Bruce's ranch and another from the California-^Iexican 

 boundary on the Colorado. 



"Wherever we reached bluffs or other elevations not bottom land, 

 this solitaire of the mountains and foothills is wont to appear. Its 

 weird and plaintive cry is in impressive keeping with these barren 

 solitudes." 



Sayornis nigricans (Sw.). Black Phoebe. 



Obtained at Bruce's ranch, and at the mouth of the Hardy ri\-er. 

 The under-tail coverts appear perfectly white, although the longer ones 

 are dusk}^ centrally for more than half their length. 



"One of the most lively bits of bird life, which relieved the tedium 

 of our boat journey, was the frequent sight of these birds sitting on the 



