Todd: ( )kn'itiiology of 1>aiiama Islands. -i'id 



"baharticusis" in the I'^icld Museum collection with the Cuban birds, 

 I fail entirely to ai)preciate any of the characters ascribed to the former. 

 All his specimens arc worn and faded, and unless skins in absolutely 

 fresh plumage show decided difTerences the name "bahamcnsis" must 

 necessarily be relegated to synonymy, desjoite the gap in the dis- 

 tribution of the species. 



The female differs from the male in being duller, with the black 

 streaks on the sides of the breast much less distinct, in some specimens 

 bareh' indicated. 

 67. Dendroica vigorsii achrustera Bangs. 



TwetU>-ti\c specimens: New Providence (Blue Hills); Andros 

 (Staniard Creek); Abaco (Sand Bank, Spencer's Point). 



In addition to the above, I have studied the series of Bahaman 

 Pine Warblers in several other collections, as indicated by small index- 

 figures in the following table of measurements. 



Even after due allowance has been made for different degrees of 

 wear, it will be observed that the series from Abaco averages about 

 the same as those from the other islands, except as regards the bill, 

 which is slightly larger. The type of Dendroica vigorsii abacoensis 

 Ridgway (Xo. 108479 of the above table) proves to be an exception- 

 ally brightly colored bird, though a few New Providence individuals 

 in comparable plumage are fully as bright. Upon comparing the 

 series from Abaco with an equal one from New Providence I can find 

 no constant differences in color, but only in the size of the bill. As 

 I do not consider that the latter dift'erence in itself justifies subspecific 

 separation, I judge it better not to formally recognize "abacoensis." 

 Specimens from Andros and Great Bahama are likewise indistinguish- 

 able, while three examples from San Domingo, although badly worn, 

 seem no different from Bahaman birds in the same state of plumage, 

 except for their slightly smaller bills. 



The color-differences between this form and D. v. vigorsii are obvious 

 and constant when specimens of the same age, sex, and condition of 

 plumage are compared. Mr. Bangs had only females in first nuptial 

 dress before him when he wrote his description, as shown by an in- 

 spection of his series. Adult females are much brighter, nearly as 

 bright in fact as adult males, the resemblance being much closer than 

 in the case of the continental form. Moreover, the males vary in pre- 

 cisely the same way, being much duller in color in first winter and first 

 nuptial plumages than in fully adult dress. There is thus a curious 



