ANATIN^E — THE DUCKS — CLANGULA. 41 



j3. Americana,. Male adult: Wing, 9.25 inches ; bill to basal angle, 1.85 ; tarsus, 1.60 ; mid- 

 dle toe, 2.50. Uab. North America. 

 B. Size small (wing less than 7.00 inches) ; male with a large white patch on each side of the 

 occiput (confluent, behind) ; female with a white spot on the auricular region. 

 3. C. albeola. Wing, 6.00-6.75 inches ; bill from tip to end of basal angle, 1.15-1.25; depth 

 at base, .55-70; width, .45-.60; tarsus, 1.15-1.25; middle toe, 1.80-2.00. Hob. North 

 America. 



Clangula islandica. 



BARROW'S GOLDEN-EYE. 



Anas islandica, Gmel. S. N. I. ii. 1788, 541. 



Bucephala islandica, Ba:rd, B. N Am. 1858, 796 ; Cat. N. Am. B. 1859, no. 594.— Coues, Key, 1872, 



290 ; Check List, 1873, no. 506 ; Birds N. W. 1874, 577. 

 Clangula islandica, Bonap. Cat. Met. Pec. Eur. 1842, 74. — Eidgw. Norn. N. Am. B. 1881, no. 



619. — Coues, Check List, 2d ed. 1882, no. 726. 

 Clangula Barrovii, Sw. & Rich. F. B. A. II. 1831, 456, pi. 70 (<J). 

 Fuligula Barrovii, Nutt. Man. II. 1834, 444. 

 Clangula scapularis, Brehm, Vog. Deutschl. 1831, 932. 

 Fuligula clangula, vav., Aud. Orn. Biog. V. 1839, 105, pi. 403 ; Synop. 1839, 292 (part) ; B. Am. VII. 



1843. 362 (part ; describes the species as supposed summer plumage of B. clangula). 



Hab. Northern North America, south in winter to New York, Illinois, Utah, etc ; breeding 

 in the high north, and south in the Rocky Mountains to Colorado. Greenland ; Iceland . acci 

 dental in Europe, 



Sp. Char. Adult male: Head and upper half of the neck glossy blue-black, with reflections 

 of green, blue, and violet, ai cording to the light ; a somewhat wedge-shaped vertical patch of white 



C. islandica. 



across the anterior half of the lores, bordering the lateral base of the bill, the upper part forming 

 an acute angle on each side of the forehead, the lower part rounded. Upper parts velvety black, 

 with a soft bluish-violet tinge ; outer row of scapulars marked with a mesial cuneate stripe of 

 satiny white, the greater portion of the stripes concealed, so that the exposed portion forms round- 

 ish or oblong spots ; middle wing-coverts white, producing a broad bar ; exposed terminal half of 

 greater coverts, with the whole of the exposed portion of the five or six inner secondaries, white, 

 VOL. II. — 6 



