BIRDS OF NORTH AND MIDDLE AMERICA. 347 



(r Head (including trest) and neck -rayinh brown, the crest often tinged with 

 blue; back light brownish gray or grayi.-^h brown; rump, upper tad-coverts, 

 and posterior under parts light cerulean or tuniuoise l)lue. (Sierra Nevada 

 and San Bernardino ranges of California and mountains of northern Ixjwer 



California.)"' 



Cyanocitta stelleri frontalis ( i). ooo) 



bb. A white or grayish white spot immediately above eye. 



c Head and foreneck black (crest sometimes tinged with blue). 



d. Back brownish gray or sooty, without distinct l>lue tinge; crest very slightly, 

 if at all, tinged with blue, 

 e Back dusky grayish brown, or sooty; superciliary spot smaller, or else 

 more gravish; forehead streaked with light blue or else streaks obso- 

 lete; blue of rump, etc., deeper. (More northern Rocky Mountams, 

 from Wyoming, ft Utah,?* Idaho, and eastern Washington northward.) 



Cyanocitta stelleri annectens ( p. 357) 

 ee Back clear or light brownish gray or smoke gray, strongly contrasted 

 with black of crest; superciliary spot larger, or else purer white; fore- 

 head conspicuously streaked with bluish white; blue of rump, etc., 

 paler. (More southern Rocky Mountains, from Colorado, '' and Utah c 

 to States of Zacatecas and nortliern Jalisco, west-central Mexico. ) ^ 



Cyanocitta stelleri diademata (p. 358) 



dd Back .listinctly blue (dull blue or grayish bluej ; crest distinctly tinged 



with blue. (South-central Mexico, in States of Vera Cruz, Puebla, 



Morelos Mexico, and Michoacan.).... Cyanocitta stelleri azteca (p. 361) 



cc Head and foreneck blue (sides of head more blackish). (Southern :\Iexico, 



in States of Hidalgo, Vera Cruz, Oaxac-a, (Guerrero, Colima, and Chiapas; 



Guatemala; Honduras.) Cyanocitta stelleri coronata (p. 362) 



CYANOCITTA CRISTATA CRISTATA (Linnaeus). 



BLUE JAY. 



Adults {sexes aUJce).—Fi\exim (ineludino- crest), hindneck, back, scapu- 

 lars rump, upper tail-coverts, and lesser and middle wing-coverts 

 plain dull campanula blue or grayish violet-blue, the frontal feathers 

 sometimes tipped with paler blue or Iduish white; superciliary space, 

 suborbital and malar regions, greater part of auricular region, chin, 

 and throat verv pale bluish gray; a loral patch (extending more or 

 less broadlv across base of forehead), narrow postocular streak, and a 

 black collar ])eginning on nape (beneath crest) and extending thence 

 downward across end of auricular region and along side of neck and 

 connecting with a l)roader, somewhat crescentic patch across chest, 

 black; greater wing-coverts, secondaries, and rectrices rich cobalt or 

 azure blue, broadlv tipped with white (except middle pair of rectrices), 

 and barred with black; primaries plain aziuv l)lue, paler on exterior 

 (luiUs, the portion })evond sinuated edge grayish; breast, sides, and 

 flanks smok(> grav or drab-gray (less brown in winter plumage), paler 

 posteriorlv; alxlomeu, anal region, and under tail -co verts white; under 

 wing-coverts dusky blue; bill and feet black; iris brown. 



"Tntergrading^witli^C'. s. carbou^m on east slope of Northern Coast Range and 

 southern portion of Southern Coast Range. 



i* In winter onlv. f Breeding.] 



