252 Mr. O. Salvia on the Birds of the 



^S. SlURUS NOVEBORACENSIS. 



Siurus noveboracensis (Gm.) ; Salv. & Godm. Biol, Centr.- 

 Am., Aves, i. p. 145. 



Seiurus noveboracensis notabilis, Ridgw. Proc. U.S. Nat. 

 Mils. viii. p. 564. 



Holbox I. (December) ; Cozumel I. (January) ; Ruatan I. ; 

 Bonacca I. (September). 



A very abundant species in winter throughout Mexico and 

 Central America, the West Indies, and northern portions of 

 South America. 



V^4 OpORORNIS FORMOSA. 



Oporornis formosa (Wils.) ; Salv. & Godm. Biol. Centr.- 

 Am., Aves, i. p. 148. 



Bonacca I. (September). 



A single specimen in fully adult plumage. 



A winter visitor to Mexico and Central America, and also 

 found in Cuba. 



^35. Geothlypis trichas. 



GeothJypis trichas (Linn.) ; Salv. & Godm. Biol. Centr.- 

 Am., Aves, i. p. 150. 



Geothlypis trichas occidentalis, Ridgw. Proc. U.S. Nat.Mus. 

 viii. p. 564. 



Holbox I. (December) ; Mugeres I. (December) ; Cozu- 

 mel I. (January) ; Ruatan I. 



Many specimens in all stages of plumage. 



Mr. Ridgway states that the Cozumel bird is of the western 

 race of G. trichas. We have only a female from that island, 

 but all the adults from the other islands mentioned above 

 seem to belong to the eastern form. 



G. trichas is very common all through Mexico and Central 

 America in winter, and is also found in many of the West- 

 Indian Islands. 



36. IcTERIA VIRIDIS. 



Icteria viridis (Gm.) ; Salv. & Godm. Biol. Centr.-Ani., 

 Aves, i. p. 157. 



Cozumel I. (January, April). 



Two of these specimens have the bill almost as black as 



