116 THE CONDOR Voi,. X 



several days, about the middle of October, around a house in the lower part of 

 Miller Canj-on. It was the only one of the species seen. 



Certhia familiaris albescens. Sierra Madre Creeper. Fairly common through- 

 out the Huachucas during October, but in daily lessening numbers. The species 

 does not remain in the mountains through the winter. 



Sitta carolinensis nelsoni. Rocky Mountain Nuthatch. A few were seen in 

 the Rincon Mountains. In the Huachucas they were abundant, mostly in the 

 lower parts of the range. 



Sitta pygmaea. Pigmy Nuthatch. The Pigmy Nuthatch appears to be a bird 

 of the pine woods altogether. In the Huachucas it was not seen below 8000 feet 

 at any time, and at the end of October was the only species of bird common at 

 that altitude. It was not met with in the parts of the Rincon Mountains we visited. 



Baeolophus wollweberi annexus. Bridled Titmouse. As usual this bird was 

 found in the greatest abundance in the oak belt of the Huachucas, while in the 

 Rincons it was one of the few species that was fairly common. Moulting specimens 

 were taken September 26, and in October young and old were indistinguishable in 

 plumage. 



Psaltriparus plumbeus. Lead-colored Bush-tit. This species proved to be un- 

 expectedly rare in the Huachucas. I was in the mountains two weeks before I 

 met with it, and then it was only occasionally that I would run into a flock. It 

 was not seen in the Rincons at all. 



Regulus calendula. Ruby-crowned Kinglet. Very common in the Huachucas. 

 Early in October they were frequently met with in flocks of twentj^ or twenty-five, 

 but their numbers were greatly lessened by the end of the month. I believe that 

 a few undoubtedly remain in the mountains through the winter. 



Myadestes townsendi. Townsend Solitaire. A single bird was seen near the 

 mouth of Miller Canyon on October 10. 



Hylocichla guttata guttata. Alaska Hermit Thrush. Two specimens referable 

 to this race were secured on October 29 and November 6, respectively. Very few 

 Hermit Thrushes of any sort were seen. 



Hylocichla guttata auduboni. Audubon Hermit Thrush. A female of this 

 variety was secured in the Huachucas on October 11. 



Sialia mexicana bairdi. Chestnut-backed Bluebird. One or two small flocks 

 were seen in the Rincon Mountains. In the Huachucas the species was not as 

 abundant as I have found it during the summer months, and was most frequently 

 met with in the foothill region. 



Sialia arctica. Mountain Bluebird. Seen on the plains below the Huachucas. 

 The first flock was observed on October 28, and the species was afterwards met 

 with on several occasions. 



Chicago^ Illinois. 



THE MEXICAN BI.ACK HAWK 



By GERALD BAMBER THOLIAS 



DURING the fall and winter of 1905 and spring of 1906 it was my pleasure 

 to observe quite extensively the habits of one of the most, if not the most 

 interesting of our Raptores, the Mexican Black Hawk ( Unibitiiiga anth'a- 

 cina) . Nearly all my observations were confined to the little colony of British 



