GUIRACA, Lor 
somewhat glossy. They are bluish-green, mottled and blotched 
with greyish-brown and pale underlying grey. They measure from 
‘93 to 1:08 in length, and from ‘68 to °71 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 and more sharply 
defined. 
1. North America (Smiths. Inst.). Salvin-Godman Coll. 
3. Fort Dufferin, Manitoba. 14th N. Amer. Bound. Comm. 
June (G. M. Dawson). 
2. Western California (2. Ridgway : Crowley Bequest. 
Tristram Coll.). 
6. Los Angeles, California, 28th May. W. Radcliffe Saunders, Esq. 
[Pel]: 
Genus GUIRACA, Swains. 
Guiraca cerulea (Linn.). 
Guiraca cerulea, Baird, Brewer § Ridgw. N. Amer. Birds, ii. p. 76 
(1874) [part.]; Salv. § Godm. Biol. Centr.-Amer., Aves, i. p. 344 
(1884) [part.]; Sharpe, Cat. Birds B. M. xii. p. 66 (1888) [part.] ; 
Nehrk. Kat. Eiersammil. p. 104 (1899); Sharpe, Hand-l. v. p. 202 
(1908). 
Guiraca cerulea cerulea, 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. Radcliffe Saunders, Esq. 
2: Charleston, S. Carolina, 28th W. Radcliffe Saunders, Esq. 
May. es 
4, Savannah, Georgia, 20th May W. Radcliffe Saunders, Esq. 
(T. D. Perry). ig Eat 
Guiraca lazula (Less.). 
Guiraca ceerulea lazula, Ridgw. Birds North § Middle Amer. i. p. 610 
(1901). 
Guiraca lazula, Sharpe, Hand-l. y. p. 202 (1908). 
Eggs of the Western Blue Grosbeak are indistinguishable from 
those of G. cerulea, 
1. Los Angeles, California, June. W. Radcliffe Saunders, Hsq. 
BP: 
2. Mexico. Old Collection. 
2. Mexico. Salvin-Godman Coll. 
2. “Mexico. Gould Coll. 
