J *" 02 3 °] BANGS CHIRIQUI BIRDS 51 



Remarks. — The Costa Rican form of this little thrush — true 

 C. gracilirostris Salv. — is remarkable for its very small, slender 

 bill, and has been supposed to be an aberrant member of the genus ; 

 but the new bird from the higher slopes of the Volcan de Chiriqui 

 has a bill that is proportionally rather larger than that of many typical 

 species, C. griseiceps for example, though in other respects it is so 

 much like true C. gracilirostris that I have thought best to treat it 

 as a subspecies. 



Like other members of the genus this bird is a fine songster. Its 

 performance, however, cannot be compared to that of C. fuscater; 

 the vocal achievements of the latter, Mr. Brown tells me, are unsur- 

 passed by any bird he has ever heard. 



Zeledonia coronata Ridg. 



Two adult males, Boquete, 7000 and 5800 feet, March and April. 



The exact position of this curious bird is still in doubt, but it 

 seems to me well, for the present at least, to put it somewhere near 

 the thrushes. 



Mr. Brown was able to tell me nothing of its habits or song, the 

 two individuals were shot while " hopping about in the underbrush." 



These two specimens have been compared with the type, and I 

 could not see that they differed from it in any way. 



Cinclus ardesiacus Salv. 



Eleven specimens, adults of both sexes and two young in the 

 pale gray plumage, Boquete and Volcan de Chiriqui, 4000 to 7500 

 feet, February to April. 



Thryophilus modestus elutus 1 subsp. nov. 



Eight specimens, adults of both sexes and one nestling, 

 Boquete, 3800 to 4800 feet, March and April, and Pedregal, 

 August (one male in nestling plumage) . 



1 Elutus — washed out. 



