228 



VERTEBRATES I BIRDS. 



The Long-crested Jay, C. macrolophiis , Baird, of the 

 Rocky Mountains, is twelve and a half inches long, and 

 the wing less than six inches, and is distinguished by its 

 long crest, which is nearly twice the length of the bill. 



The Genus Cyanocitta has the head without a crest, 

 the wings and tail blue, but not banded. 



Fig. 125 A. The California 



Jay, C. californica, 

 Strick., of the Pa- 

 cific coast, is twelve 

 and a quarter inches 

 long, and the wing 

 five inches ; general 

 color above blue 

 without bars ; a cres- 

 cent of blue on the 

 fore part of the 

 breast. 



Blue Jay, C. crtaata, Sw. (See p. ,27.) ^ ^^ ^^ 



thoura has the bill very stout, head without a crest, the 

 throat black, and the lateral tail-feathers bright yellow. 



The Rio Grande Jay, X. luxuosa, Bonap., of the Rio 

 Grande, is eleven inches long, and the wing four and 

 three quarters inches ; the color above, green ; beneath, 

 yellow glossed with green ; the inside of the wings and 

 four outer tail-feathers, yellow ; the sides of the head, and 

 beneath from the bill to the fore part of the breast, black ; 

 the crown and nape brilliant blue, and the sides of the 

 forehead white. 



The Genus Perisoreus has the bill very short, and 

 notched at the tip ; head without a distinct crest. 



The Canada Jay, P. canadensis, Bonap., of Northern 

 North America, is over ten and a half inches long, and 

 the wing five and three quarters inches ; the head and 

 neck and fore part of the breast, white ; a plumbeous 



