Vol. II, Pt. I] GIFFORD— BIRDS OF THE GALAPAGOS ISLANDS 79 



In four specimens taken on south Albemarle on November 

 1, the post Juvenal or the first prenuptial moult is started. The 

 Juvenal plumage is a very weak washed-out copy of the usual 

 plumage of the female. 



Cases of partial albinism are not infrequent in this species. 

 The several examples in the Academy's series show white 

 feathers among the colored ones at the base of the neck and 

 on the breast. 



A number of specimens have a distinct rusty wash on the 

 tips of the feathers of the breast and abdomen. 

 " The females average somewhat smaller than the males, as 

 shown by the following extremes and averages in millimeters, 

 which are condensed from the measurements of forty-five 

 males and thirty-five females, all from the Galapagos Islands : 

 Males— Wing 190-215 (203) ; tail 72-94 (83) ; culmen 40- 

 45 (43) ; tarsus 31.1-36 (33.1) ; middle toe 37.5-43.9 (40.4). 

 Females— Wing 180-202 (192); tail 67-81 (72); culmen 

 37-43.4 (40.1); tarsus 29-33.7 (31.3); middle toe 36-40.5 

 (38.1). _ 



The single egg of this species taken on Charles Island meas- 

 ures 51X35.1 mm. 



Querquedula versicolor: Brilliant Teal 



In a nominal list of the Galapagos birds brought home by 

 the Swedish Frigate "Eugenie," Professor Carl J. Sundevall 

 includes ''Anas macidirostris/'^ The "Eugenie," while on a 

 voyage round the world, visited the islands in May, 1852, with 

 Dr. Kinberg as zoologist and surgeon of the expedition. 



There is apparently no other record of this species from the 

 Galapagos Islands. 



Querquedula discors: Blue-winged Teal 



Albemarle and Chatham islands. 



The presence of the Blue-winged Teal in the Galapagos 

 Islands was first detected on February 8, 1906, by Mr. Beck, 

 who saw nine in the company of a flock of Bahama Pintails in 

 a pond above sixteen hundred feet elevation on Chatham. 



iP. Z. S., 1871, p. 126. 



