Carriker : List of the Birds of Costa Rica. 767 



numbers. It is a rare bird below 2,000 feet, and extends in abundance up 

 to at least 7,000 feet. It is very similar to the common House Wren of 

 North America {Troglodytes aedon) in its habits and song, as well as in the 

 manner of building its nest and the color of the eggs, although the clutches 

 seem to be smaller. 



I noted two nests of the species, one at Guapiles, July 16, containing 

 three fresh eggs (probably an incomplete set), which was placed in an 

 old woodpecker's hole twelve feet from the ground, with the usual style of 

 nest; the other was taken at Cairo, June 5, and contained four fresh eggs. 

 This nest was placed in a small hollow stub, open at the top, with a 

 cavity two feet deep. The nest was lined with horse-hair and feathers. 



549. Troglodytes musculus inquietus (Baird). 



Troglodytes inquietus Baird, Rev. Amer. Birds, 1864, 143 (Panama Railroad; 

 coll. U. S. Nat. Mus.; from "Lawrence MS."). 



Troglodytes musculus inquietus Oberholser, Proc. U. S. Nat. Mus., XXVII, 

 1904, 205 (critical). — Ridgway, Birds N. and Mid. Amer., Ill, 1904, 575 

 (Isthmus of Panama to southwestern Costa Rica ?). — Bangs, Auk, XXIV, 

 JO ?. 304 (Boruca, two cT's [Underwood]). 

 k Troglodytes furvus Salvin and Godman, Biol. Centr.-Am., Aves, I, 1880, 101, 

 part (Panama). 



Troglodytes striatulus Sharpe, Cat. Birds Brit. Mus., VI, 1881, 254, part (Pan- 

 ama). 



In Mr. Bangs' collection are two specimens of this form from Boruca, 

 agreeing exactly with Panaman skins, so that there can be no question about 

 including the species in the list of the birds of Costa Rica. Like several 

 other forms, it comes up from Chiriqui, penetrating only into the extreme 

 southwestern portion of the country, probably not beyond the Terraba 

 Valley. Lawrence has recorded the species from Costa Rica upon the 

 authority of Salvin and Godman, as collected by Arce. I have not included 

 this record because I do not believe it to be authentic, since Arce did no 

 collecting south of the Gulf of Nicoya in Costa Rica and I am quite sure 

 that the species in question does not get that far north. I have seen 

 a specimen from Pozo Aziil de Pirris, a point much farther south than Arce 

 ever reached, which is typical T. m. intermedins, and it is unlikely that the 

 two races overlap. The bird is evidently rare so far north, for but two 

 specimens were secured by Underwood, while I saw none at all in that 

 region, neither of this form nor of the northern T. m. intermedins. 



550. Pheugopedius hyperythrus (Salvin and Godman). 

 Thryothorus hyperythrus Salvin and Godman, Biol. Centr.-Am., Aves, I, 1880, 

 91 (Paraiso Station, Panama Railroad; coll. Salvin and Godman). — • 



