352 



BULLETIN 50, UNITED STATES NATIONAL MUSEUM. 



tail less distinct, sometimes obsolete; length (skins), 280-313 (301.3); 

 wing, 142.5-157 (149.1); tail, 128.5-147 (137.4); exposed culmen, 27.5- 

 31 (30); tarsus, 44-47.5 (45.8); middle toe, 22.5-25.5 (24.1).« 



Youvg. — Wings and tail as in adults, but the blue usuall}" more 

 greenish (china blue to cerulean blue) and usuall}^ (?) without dis- 

 tinct black bars on secondaries or roctricos; under parts, rump, and 

 and upper tail-coverts dull slate-grayish, the former becoming darker 

 and more sooty anteriorly; head and neck plain soot}^ or dark sooty 

 slate, the forehead without any blue streaks. 



Coniferous forests of northern Pacific coast district, from shores of 

 Puget Sound northward to eastern shores of Cook Inlet, including 

 Vancouver Island and other coast islands, except Prince of Wales 

 island and the Queen Charlotte group. 



\_Corvus\ stellerl Gmelin, Sy.st. Nat., i, 1788, 370 (Nootka Sound, Vancouver 

 Island; based on Steller's Crov Latham, Gen. Synop. Birds, i, 389; Pennant, 

 Arct. Zool., ii, pt. i, 249).— Latham, Index Orn., i, 1790, 158. 



Corvus stelleri Pallas, Zool. Rosso-Asiat., i, 1826, 393, pi. 17 (promontory of St. 

 Elias, Alaska). — Bonaparte, Zool. Journ., iii, 1827, 49; Ann. Lye. N. Y., 

 iii, 1828, 433; Am. Orn., ii, 1828, 44, pi. 13, fig. 1.— Nuttall, Man. Orn. 

 U. S. and Can., i, 1832, 229. 



Garrulus stelleri Vieillot, Nonv. Diet. d'Hist. Nat., xii, 1817, 481; Enc. M^th., 

 ii, 1823, 893.— SwAiNsoN, Fauna Bor.-Am., ii, 1831, 294, part (not pi. 54, 

 which=C. s. annecteiis). — Schlegel, Mus. Pays-Bas, Coraces, 1867, 62 

 (Sitka; Nootka Sound). 



P[/c«] delleri Wagler, Syst. Nat., 1827, Pica, sp. 10; Isis, 1839, 750. 



[^Cijanuras] stelleri Swainson, Fauna Bor.-Am., ii, 1831, 495. 



Ci/anurus stelleri Coues, Check List, 1873, no. 235, part. 



[f'lfanurus'] stellerii Coves, Key N. Am. Birds, 1872, 165, part. 



«Ten specimens. 



Specimens from Vancouver Island, Sitka, and Kenai peninsula compare in average 

 measurements as follows: 



The series from Cook Inlet, on which Mr. Chapman's ('. s. horealis was based, are 

 in very fresh fall plumage and therefore distinctly darker and more slaty in color of 

 hack, etc., and slightly richer blue than specimens taken at other seasons, which 

 greatly predominate in collections. Compared with specimens from Vancouver 

 Island and other more southern localities taken at the same season they are, how- 

 ever, nowise different, so far as I am able to discern. 



