78 University of California Publications in Zoology, [^^ol. 7 



of the more southern islands; but not until the middle of July, 

 when the young birds began to appear in the woods, was the 

 species at all abundant. It was most numerous at Mitkof Island, 

 early in August, when old and young together, in scattering 

 troops of a dozen or more, were encountered along the streams and 

 in the more open places in the woods. Two males were shot at 

 Boca de Quadra June 11 which were evidently keeping together, 

 and on dissection they proved to be non-breeding birds. 



A young bird, nearly full grown but in the juvenal plumage 

 throughout, was taken on Btolin Island on July 7 (no. 9756). 

 Another, with patches of first winter plumage appearing in the 

 pectoral tracts was secured on Mitkof Island, August 10 (no. 

 9758). An adult from the latter locality, August 4 (no. 9757) is 

 in the midst of the post-nuptial molt, with little of the old 

 plumage remaining, but with many of the new feathers but 

 partly grown out. An immature male from the Taku River, 

 September 9 (no. 9759), is in the first winter plumage through- 

 out, but with only two reetrices. As these are grown out to their 

 full length and the others entirely absent, this was probably due 

 to an accident, and does not represent the normal molt. 



Although the subspecies carlottae is stated (Osgood, 1905, p. 

 70) to occur in the southern part of Prince of Wales Island, I 

 must confess my inability to distinguish two forms in the material 

 collected. Some individuals taken south of Sumner Straits cer- 

 tainly do exhibit an extreme of dark coloration, with the color 

 of the blue areas some what* intensified, and might possibly be 

 considered to represent the more southern race ; but the differences 

 are very slight. On the whole the jays collected show no tangible 

 points of difference, either among themselves or compared with 

 other series in the Museum collection, from the northern part of 

 the Alexander Archipelago or from Prince William Sound, and I 

 have no alternative but to include them all under the form 

 stelleri. Though carlottae is alleged to be larger than stelleri, 

 the published measurements show but trifling differences (cf. 

 Eidgway, 1904, pp. 351-354) ; but even so, none of my specimens 

 exceed the minimum dimensions ascribed to carlottae, and are 

 thus well within the range in size of true stelleri. The differences 

 distinguishing the two forms are slight, at the best, and any 



