GUIRACA. 345 
Hab. Nortu America, Southern United States from Atlantic to Pacific Oceans 19 23, 
Texas 11 27 28,__Mxico 2424, Nuevo Leon (Couch *), Frontera (Wright ®), Zoquito 
(Clark®), Los Nogales (Kennerly®), Tableland (Bullock?), Valley of Mexico 
(White 8), Tierra Fria, Velasco (le Strange), Mazatlan (Grayson ' 5), Presidio 
(Forrer), Tepic (Grayson), Plains of Colima (Xantus®), Guanajuato (Dugés), 
Jalapa (de Oca ®), Cordova (Sallé°), Vera Cruz in winter (Sumichrast 1°), Oaxaca 
(Boucard’, Fenochio), Chihuitan, Huitzo (Sumichrast'*), Merida in Yucatan 
(Schott 18), Izamal in Yucatan *!, Cozumel I. (Gaumer) ; GuatemMata, Cuyotenango, 
Chol, Salama !°, Choctum 1°, Yzabal (0. S. & Ff. D. G.); Nicaraeua, Chinandega 
(Hicks), Chontales (Belt ®), Omotepe I. (Nutting 22); Costa Rica (v. Frantzius 18), — 
Angostura (Carmiol 1*).—CuBa ”°. 
This species visits Mexico and Central America in the winter months, spreading at 
that season over the whole country as far south as Costa Rica. In the island of Cuba, 
alone of the Antilles, it is rarely found, and only in the month of April, when it arrives 
with other migratory birds on their passage northwards”. On the neighbouring main- 
land in Northern Yucatan it is common from December to May?!. It is also found 
in the latter month in the island of Cozumel. In Guatemala G. cerulea is pretty 
generally distributed throughout Vera Paz, especially in the hotter districts north of 
Coban 1°. We also saw it in the high ridge of mountains between Rabinal and Chol, 
in the valley of the Motagua, and in the coast-region of the Pacific near Cuyotenango. 
During the season of its stay in the south it is a dull, uninteresting species, uttering no 
song. It is usually met with in small flocks, which frequent trees of moderate height. 
Grayson, who found G. cerulea at Mazatlan from October to April, also procured a 
specimen at Tepic in June. From this he inferred that it migrated to the Mexican 
uplands to breed. Of this we have no confirmation ; and Sumichrast simply includes 
it as one of the migratory Finches of the State of Vera Cruz 1°. 
In the United States G. cerulea is a well-known bird; and Brewer gives a long 
account of it in the ‘ History of the Birds of North America’ !®, from which it would 
appear that it seldom occurs so far north as Maine, but that in more southern States it 
spreads from the Atlantic to the Pacific, and that it breeds wherever found, He 
describes its nest, and speaks of its eggs as of a uniform light-blue colour, which readily 
fades on exposure to light. 
b. Cyanocompsa. 
2. Guiraca concreta. 
Cyanoloxia concreta, DuBus, Bull. Ac. Brux. xxii. p. 150°. 
Goniaphea concreta, Scl. P. Z. 8. 1856, p. 802°; 1857, p. 228°. 
Guiraca concreta, Scl. P. Z. 8, 1859, p. 378*; Scl. & Salv. Ibis, 1860, p. 33°; P. Z. S. 1870, 
p- 886°; Salv. P. Z. S. 1867, p. 1417; 1870, p. 189°; Ibis, 1872, p. 317°; Sumichrast, 
BIOL. CENTR.-AMER., Aves, Vol. I., December 1885. 44 
