NORTH AMERICAN BIRDS EGGS. 



211 



439. Buff-bellied Hummingbird. Amazilis cerviniventris chalconota. 

 Range. Lower Rio Grande Valley in Texas and southward through Mexico. 

 These birds are like the last but have the underparts a pale brownish butt color. 



They are quite common in their summer range in the United States, nesting at 

 a low elevation in bushes and low trees. The two eggs are white, .50 x .35. 

 Data. Brownsville, Texas, May 5, 1892. Nest of fine bark-like fibre on the out- 

 side, lined with lint from thistle plant; located on limb of small hackberry. Col- 

 lector, Frank B. Armstrong. 



440. Xantus Hummingbird. Basilinna xantusi. 

 Range. Southern Lower California. 



A handsome species, greenish above, with a coppery tinge and shading into 

 reddish brown on the tail; under parts buffy, throat metallic green, and a broad 

 white streak behind the eye. They breed on the ranges making a similar nest 

 to those of other Hummers, placed on weeds or bushes near the ground. The 

 eggs cannot be distinguished from those of the majority of other species. 



440.1. White-eared Hummingbird. Basillinna leucotis. 



Range. A Central American and Mexican species, casually found on the 

 ranges in southern Arizona. 



The plumage of this species is greenish above and below, being bright metallic 

 green on the breast; the forehead, sides of head, and throat are iridescent blue 

 and a white line extends back from the eye. 



441. Broad-billed Hummingbird. lache latirostris. 



Range. Mountains of central Mexico north to southern Arizona and New 

 Mexico. 



The throat of this species is a rich metallic blue; otherwise the plumage is 

 greenish above and below, being brighter and more iridescent on the breast. 

 They are not uncommon on the ranges of southern Arizona, where they have 

 been found nesting in July and August, their nest not being unlike those of the 

 Rufous Hummer, but with the exterior largely composed of shreds of grayish 

 bark arid lichens. Their eggs are like many others of the Hummers. 



PERCHING BIRDS. Order XVII. PASSERES. 

 COTINGAS. Family COTINGID/E. 



[441.1.] Xantus Becard. Platypsaris albiventris. 



Range. Mexico; north casually to the southern border of Arizona. 



This peculiar species is grayish above and lighter gray ^tfflfl^^^ 

 below, has dark slaty crown, and a patch of rose color on 

 the lower throat. This is the only representative of this 

 tropical family that has been found as yet over the Mexican 

 border, but its near ally, the Rose-throated Becard has been 

 found within a very few miles and will doubtless be added to 

 our fauna as an accidental visitor ere long. Their nests are 

 large masses of grasses, weeds, strips of bark, etc., partially 

 suspended from the forks of branches. Their eggs number four or five and are 

 a pale buffy gray color, dotted and scratched with a pale reddish brown and dark 



ray. Size .95 x .70. The one figured is from a set in the collection of Mr. Cran- 



all, taken June 1, 1897 at Presidio Sinaloa, Mexico. 



[Buffy <iray. 



,1 



