PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 381 
not see any of the latter. Found principally on the edge of a large 
clearing near the swamp. 
Their nests were apparently built among the branches of fallen trees, 
and they appeared to be living in much the same manner as wrens. 
Fam. TROGLODYTID. 
*3. Campylorhynchus capistratus (Less.). 
Common. This species seems to be confined to the west side of the ° 
lake. Atleast I failed to find a single specimen either on the island Ome- 
tepe or the river San Juan del Norte. I consider it one of the most 
pleasing songsters I have met in Central America. A more jolly, rol- 
licking melody would be hard to imagine, and is in perfect keeping with 
the familiar, almost audacious, manner of the bird. 
Three specimens. 
| NorE.—The differences between Costa Rican specimens of this species, 
and others from Guatemala and Honduras, alluded to on page 389 of 
volume 5 of these Proceedings, are well borne out in five specimens 
(two from San Juan del Sur and three from Sucuyé) collected by Mr. 
Nutting, the Nicaraguan bird agreeing with those from Costa Rica in 
the more variegated back, which in two examples from the above-named 
countries (No. 30654, Savana Grande, Guatemala, O. Salvin, and No. 
42588, Spanish Honduras, Ilges and Sauter) have the entire back an 
unbroken rusty chestnut color. The two specimens from San Juan del 
Sur are decidedly larger than the three from Sucuya, and have light 
buff rather than white lower parts; but these differences may not be 
constant in a larger series.—R. R.] 
4. Thryophilus rufalbus (Lafr.). 
Common, more especially in thick forests. This bird presents a 
marked contrast to the preceding, bothin habits andsong. Thus, while 
C. capistratus is conspicuous, fearless, and self-asserting, and prefers 
the hedge-rows and edges of the woods, 7. rufalbus is retiring, timid, 
and modest in disposition, and is almost invariably found in the deep 
forests. While the note of the former is loud, voluble, and merry, that 
of the latter is low, hesitating, and sad, but wonderfully sweet and 
expressive. 
*5. Thryophilus pleurostictus Scl. 
Abundant. Found principally in the very densest forest. Song 
Sweet, but less demonstrative than that of Campylorhynchus capistratus. 
Three specimens. 
Fam. MNIOTILTIDA. 
‘6. Siurus auricapillus (Linn.). 
Not common. Contrary to its usual choice of locality, the specimen 
obtained was shot in a dense swampy forest where S. nevius is abun- 
dant. 
