326 



SNODGRASS AND HELLER 



unequal in size. One was about the size of an ordinary G. fuligi- 

 nosa parvula nest, the other was much larger, larger even than the 

 nest of G. strenua. 



In the smaller nest were four eggs. These do not differ, except in 

 their larger size, from eggs of G.fuliginosa parvula. The ground 

 color is pale greenish-white, finely spotted with brownish and vi- 

 naceous, the spots forming blotches about the larger end. They 

 measure as follows: 21 x 16.5; 21 x 16; 21 x 16; 21 x 16. 



The following pairs were taken mated: Nos. 4371-4390, 4361- 

 4503-4503- 



633. GEOSPIZA FORTIS FRATERCULA (Ridgway). 



Geospiza fratercula RIDGWAY, Proc. U. S. Nat. Mus., xvn, p. 363, 1894, 

 and xix, p. 525, 1896; Bull. U. S. Nat. Mus., 50, Pt. I, p. 504, 1901. 



Geospiza fortis fratercula ROTHSCHILD AND HARTERT, Novit. Zool., vi, p. 

 161, 1899. 



Range. Abingdon and Bindloe. 



Our series of specimens of this subspecies from Abingdon and Bind- 

 loe show no difference in the shape or size of the bill from specimens 

 of typical G. f. fortis from Charles. The wing, however, averages 

 smaller and the body is smaller in proportion to the size of the bill 

 than in G.f. fortis and these appear to be the only distinguishing 

 characters of this form. 



MEASUREMENTS OF Geosptza fortis fratercula. 



Found in June fairly common on Bindloe, but less abundant on 

 Abingdon, where nearly all seen were young birds of the same year. 

 There is no difference between the specimens from the two islands. 

 The collection contains five adult males in either black or black and 



