BIRDS OF NORTH AND MIDDLE AMERICA. o4!) 



APHELOCOMA UNICOLOR CCELESTIS, new subspecies. « 

 CERULEAN JAY. 



Similar to A. u. unicolor but larger, and the blue color lighter, more 

 cerulean. 



Adult mafc.— Length (skins), 321.5-330 (325.9); wing, 165-168 (167); 

 tail, 155-159.5 (157.5); exposed tulmen, 28.7-29.2 (29); depth of bill 

 at nostrils, 10.5; tarsus, 43-44.5 (44); middle toe, 23-23.5 (23.1).* 



Adult female. — Length (skin), 317.5; wing, 167.5; tail, 155.5; exposed 

 culmen, 28; depth of bill at nostril, 10.5; tarsus, 43.5; middle toe, 23.'' 



Highlands of Guatemala (Totonicapam, Quiche, Chilasco, etc., 4,000 

 to 10,000 feet), and Chiapas (San Cristobal). 



Cyanocitta unicolor (not Cyanocorax unicolor Du Bus) Salvin, Ibis, 1866, 194 

 (Totonicapam, Quiche, and Chilasco, Vera Paz, Guatemala). — Baikj), 

 Brewer, and Eidqway, Hist. N. Am. Birds, ii, 1874, 284, footnote, part 

 (Guatemala) . 



{Cyanocitta] unicolor Sclater and Salvix, Norn. Av. Neotr., 1873, 39, part 

 (Guatemala). 



Clyanocitta^ unicolor Baird, Brewer, and RiDtnvAY, Hist. N. Am. Birds, ii, 1874, 

 284, part (Guatemala). 



Aphelocoma unicolor Sharpe, Cat. Birds Brit. Mus., iii, 1877, 118, part (Vera 

 Paz). — Salvin and Godman, Biol. Centr.-Am., Aves, i, 1887, 494, part 

 (Totonicapam, Quiche, and Chilasco, Guatemala). 



Alphelocoma^ unicolor Ridgway, Man. N. Am. Birds, 1887, 358, part (Guate- 

 mala) . 



Genus CYANOCITTA Strickland. 



Oyanodtta Strickland, Ann. and Mag. Nat. Hist., xv, 1845, 261. (Type, Corims 



cristatus Linnaeus. ) 

 Cyanogarrulus Bonaparte, Proc. Zool. Soc. Lond., 1850, 83; Consp. Av., i, May 



5, 1850, 376. (Type, Corvus cristatus JAunsdMS.) 

 Lophocorax ICaup, Journ. fiir Orn., ii, Nov., 1854, p. Iv. (Type, Corvus stelleri 



Gmelin.) 



Rather small Garrulinse with the head conspicuously crested. 



Coloration. — Dpper parts mainlj^ blue, the secondaries and tail (some- 

 times greater coverts also) barred with black; head black or varied 

 with black; lower parts uniform blue, or whitish with a black collar 

 across chest. 



Nidification. — Nest usually in trees (rarely in abandoned buildings), 

 open above, rather bulky, composed of dry twigs, etc., lined with fine 

 rootlets or similar materials, usually with plastering of mud between 

 lining and outer portion. Eggs 3-6, light greenish, olive, or clay 

 color, more or less speckled with deep olive, brown, lavender, etc. 



Range. — North America in general, including highlands of Mexico 

 and Guatemala. 



"Type, no. 144685, coll. U. S. Nat. Mus. (Biological Survey collection), adult male, 

 San Cristobal, Chiapas, Sept. 24, 1895; Nelson and Goldman. 

 6 Three specimens, from San Cristobal, Chiapas. 

 " One specimen, from San Cristobal. 



