PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 373 
Fam. SYLVIID. 
*1. Polioptila albiloris Salv. 
Common, especially in the thicket south of the river. These dimin- 
utive birds are extremely familiar and fearless, approaching within two 
or three feet of the collector, without seeming to notice his presence, in 
their busy search for the various insects which constitute their food. In 
their manner of climbing about trees and bushes they remind one of our 
Black-capped Titmouse (Parus atricapillus). 
Five specimens secured. 
Fam. TROGLODYTID 2. 
*2. Campylorhynchus capistratus (Less.). 
Common, but not so abundant as I found it on the Gulfof Nicoya, Costa 
Rica. Found generally in the more open country, especially along the 
“ pinuella” hedges, in which they often construct their nests. 
Song very voluble, both male and female often joining in a lively duet, 
which fills the air with melody. Two specimens. 
3,Thryophilus; pleurostictus Scl. 
Abundant. Four specimens. 
Fam. MNIOTILTID 4. 
4. Siurus nevius (Bodd.). 
Apparently not common. The single specimen secured was shot in 
the deep, swampy forest across the river. A diligent search on several 
occasions failed to discover other specimens. 
5. Dendreca estiva (Gm.). ; | 
Common. For some reason, inexplicable to me, this warbler was ex- 
ceedingly shy and difficult to approach, much more so than in Costa 
Rica, or the other localities visited in Nicaragua. Two specimens se- 
cured. 
*6. Myiodioctes pusillus (Wils.). 
Seen, but not secured. 
Fam. TANAGRIDZ. 
*'7, Buphonia humilis (Cab.). 
Not common. The single specimen secured was shot out of the top 
of a large tree. Song exceedingly voluble and melodious, perhaps the 
most pleasing that I heard in this region. 
Fam. FRINGILLID 2. 
*8. Cyanospiza cyanea (Linn.). 
One specimen shot in open field up the river. 
