1887. 1 Scott oh the Birds of Arizona. 21 



tlii s species at some length in a recent number of 'The Auk' (see Vol. Ill, 

 January, 1SS6. pp. Si-83) I refer the reader to that paper. The Catalina 

 region is the only point where I have met the species, where it is very 

 abundant, resident, and breeds, ranging almost coincidently with the 

 evergreen oak forests. 



[Mr. Scott's large series (45 specimens) of this interesting species pre- 

 sents some noteworthy variations. In about one-third the bill, for ex- 

 ample, is wholly deep black; most of the others have the base of the 

 lower mandible more or less whitish or flesh-color, the light portion vary- 

 ing from a slight trace at the base to a complete yellowish-white under 

 mandible. This light tint also sometimes includes the edges and base of 

 the upper mandible. This light color is frequently varied with a pinkish 

 shade, as is markedly the case in young birds of the year. The light color 

 of the bill occurs apparently only in fall specimens, but is doubtless a 

 feature of immaturity rather than of season, since many of the dark-billed 

 birds are autumnal specimens. 



The color of the interscapular region varies from blue, slightly or 

 scarcely tinged with ashy, to a decided ashy brown, regardless, apparently, 

 of sex, age, or season. The anterior lower surface likewise varies from 

 bluish gray to a brownish or buffy gray. 



A bird in nestling plumage (No. 507, July 5, 1884) has the interscapular 

 region dark brownish ash; the head gray, with a very slight cast of blue; 

 breast and sides strongly washed with brownish ash ; middle of the throat 

 white. 



No. 1290, $ , Oct. 16, 1SS4, differs from all the others in having a large 

 area of pure white on the throat, probably due to albinism. — J. A. A.] 



125. Corvus corax sinuatus. American Raven. — A common species 

 about Tucson and throughout the region, but I do not think it is more 

 abundant than the following species. I have not found it breeding, but 

 it is present all the year. 



126. Corvus cryptoleucus. White- necked Raven. — Almost the same 

 remarks apply to this as to the foregoing. It is common at times about 

 Tucson, and I have frequently noticed it at other points. 



127. Corvus americanus. American Crow. — The first Crows I saw 

 in Arizona were at the head of Mineral Creek, where they were uncom- 

 mon. I have since seen them in spring and fall on the foothills of the 

 Catalina Mountains in very large flocks. I am not aware of their breed- 

 ing at any point in the region in question, and have never met the species 

 during the summer months. 



1 28. Cyanocephalus cyanocephalus. Pinon Jay. — The only point 

 where I have met with this species is in the Catalina Mountains, and even 

 here I believe that it can not be considered a regular visitor. The first 

 noted was a flock of about forty, which appeared on the hills near Amer- 

 ican Flag on the 17th of September. 1S84. Again a flock of about the 

 same number was noticed on September 24 of the same year, and three 

 other flocks, some of them much larger, appeared the same day. On the 

 2Sth of the same month other large flocks, and a few single birds, were 



