GUIHACA. 157 



somewhat. <i;lossy. They are bluish-green, moltlcd and blotched 

 with greyish-brown and jiale underlying grey. They measure from 

 •93 to 1"U8 in length, and from "(jS to wl in breadth. 



One of the eggs among those from Los Angeles appears to belong 

 to another set. It is altogether smaller than the rest and has the 

 ground-colour much bluer and the spots rounder aud more sharply 

 defined. 



1. North America (Smiths. Inst.). Salvin-Godman Coll. 



',). I'ort Dufferin, Manitoba. 14th N. Amer. Bound. Comm. 

 June (G. M. Daiuson). 



2. Western California [M. Ridgway : Crowley Bequest. 



Tristram Coll.). 

 6. Los Angeles, California, 28th May. "NV. lladcliflfe Saunders, Esq. 



[P.]. 



Genus GUIRACA, Swnins. 



Guiraca caerulea (Linn.). 



(Iiilraca caerulea, Baird, Brewer Sf Ridyw. N. Amer. Birds, ii. p. 76 

 (1874) [pait.] ; Salv. ^- Godm. Biol. Centr.-Ainer., Aves, i. p. 344 

 (1884) [part.J ; Sharpe, Cat. Birds B. M. xii. p. 66 (1888) [part.] ; 

 Nehrk. Kat. Eiersamtnl. p. 104 (1899) ; Sharpe, Hand-l. v. p. 202 

 (1908). 



Guiraca cterulea caerulea, Ridyw. Birds North ^- Middle Amer. i. p. 607 

 (1901). 



Eggs of the Blue Grosbeak are of an oval form, slightly glossy, 

 and of a plain light blue colour. They measure from -9 to '96 in 

 length, and from -66 to -7 in breadth. 



1. North America. "W. Kadcliife Saunders, Esq. 



[P.]. 



2. Charleston, S. Carolina, 28th '\^^ Radcliffe Saunders, Esq. 



May. [P.]. 



4. Savannah, Georgia, 20th May W. Radcliffe Saunders, Esq. 

 (T.D.Perry). [P.]. 



Guiraca laziila (Less.). 



Guiraca creridea lazula, Ridi/u: Birds North Sf- Middle Amer. i. p. 610 



(1901). 

 Guiraca lazula, Sharpe, Iland-l. v. p. 202 (1908). 



Eggs of the Western Blue Grosbeak are indistinguishable from 

 those of G, ccerulea. 



1. Los Angele.s, California, June. \V. Radcliffe Saunders, Esq. 



[P.]. 



2. Mexico. Old Collection. 



2. Mexico. Salvin-Godman Coll. 



2. Mexico. Gould Coll. 



