BIRDS 



289 



This species is intermediate in size between G. psittacula and G. 

 affinis, but with a differently shaped bill. The bill is not so deep and 

 considerably more elongate. 



We Jiave three adult specimens of this species from Abingdon and 

 Bindloe-. Immature birds common on Abingdon, but adults rare, 

 only two having been seen. Only a few seen on Bindloe. 



MEASUREMENTS OF ADULT SPECIMENS OF GeosptZd hdbeli. 



58. GEOSPIZA INCERTA (Ridgway). 



Camarhynchus incertus RIDGWAY, Proc. U. S. Nat. Mus., xvm, p. 294, 1895 

 (James Island) and xix, p. 560, 1896 ; Bull. U. S. Nat. Mus., 50, Pt. I, 

 p. 482, 1901. 

 Geospiza incerta ROTHSCHILD AND HARTERT, Novit. Zool., vi, p. 168, 1900 



(James and Duncan Islands). 

 Range. James and Duncan. 



This species was not seen by us. According to Rothschild and 

 Hartert it is a very doubtful form and is probably not different from 

 G. affinis. 



59. GEOSPIZA AFFINIS (Ridgway). 



Camarhynchus affinis RIDGWAY, Proc. U. S. Nat. Mus., xvn, p. 365, 1894, 



and xix, p. 554, 1896 ; Bull. U. S. Nat. Mus., 50, Pt. I, p. 481, 1901. 

 Goespiza affinis ROTHSCHILD AND HARTERT, Novit. Zool., vi, p. 168, 1899. 



Range. Albemarle. 



This species is very similar in the shape of the bill to G. psittacula 

 psittacula. All of our specimens are considerably smaller than the 

 specimens of G. p. psittacula, but the two would probably be found 

 to intergrade if a large series could be compared. 



We have five specimens from Iguana Cove, Albemarle, two of 

 which are adult males; the others have immature plumage, but have 

 black bills and are of adult size. This species is not common at 

 Iguana Cove and appears to be very rare about Tagus Cove, where 

 only a single immature specimen was secured during several weeks of 

 collecting. 



In June these birds were heard at Iguana Cove singing a song which 

 may be represented by twlr*e-twe'e~t'wee-'ee-~e. 



