280 FIELD MUSEUM OF NATURAL HISTORY ORNITHOLOGY, VOL. I. 



Sturnella magna inexpectata Ridg. 



5 specimens. Guayabo 4 6\ i 9 . 



Common on the potrero. The birds were remarkably silent for 

 meadow-larks. Their notes were seldom heard. They had a habit 

 of making short flights and dropping into the long grass. Here they 

 would flush only when the collector was one or two steps away. 



Friiigillida*. 



Spiza americana (Gmelin). 



i specimen. Guayabo 6\ January 20. 



Junco vulcani (Boucard). 



4 specimens. Vol. de Turrialba 2 d\ 2 9 . 



These birds were common on and slightly below the summit 

 (i 1,000 ft. approx.). They found shelter in some green bushes growing 

 close to the trickles of water issuing from the sides of the crater. 

 They were the only birds upon the summit of this volcano. 



Brachyspiza capensis peruviana (Less.). 



24 specimens. Coliblanco 12 cT, 6 9 ; Vol. de Turrialba 5 cT, i 9 . 



Wanders about shrubbery in small troops. This bird was not 

 breeding. In its fondness for the vicinity of human dwellings and 

 in many of its habits this bird resembles the slate-colored junco. 

 The Costa Rica species has a pleasing song. 



Arremonops conirostris richmondi Ridg. 

 4 specimens. Guayabo 3 d\ i 9. 



Atlapetes gutturalis (Lafr.). 



i specimen. Coliblanco cJ 1 . 



Pselliophorus tibialis (Lawr.}. 



12 specimens. Coliblanco 3 d\ 4 9 ; Vol. de Turrialba 3 d\ 2 9 . 



This bird frequents thickets in clearings and at the edge of forests. 

 It is usually found flitting about brush-piles, fallen trees and in a great 

 variety of places, exploring each place thoroughly. However, it 

 never goes but a short flight from the heavy forest shade. The bright 

 yellow thigh patches may be for the purpose of protectively disguis- 

 ing the bird. Once while looking toward a large fallen tree, in which 



