GLAVCIONETTA. 



105 



*' Sm S9 W 00 th r8 r 5t tiV b nf f 8mall t er f • MaU: Len ^ about 18.00, wing 



;■" ( t ^ 2) ,\ fr T tlp t0 extre ^it y of frontal angle 1.65-1.80 



(1.73 depth of bill at base .95-1.05 (.99), width .70-.75 (.74) width of 



nail .18-.20, tarsus 1.30-1.55 (1.43), middle toe 2.15-2.30 (2 22) Finale- 



Wing 7.40-8.00 (7.72), bill from tip to frontal angle 1.40-1 60 n 50) 



1 10 1 % n S 4f "•S 1 G ! 1) ' 7^ h - 6 °- 68 C65) - W[dth ° f ™ [ - 18 - tarsus 

 1.10-1.45 (1.32) middle toe 1.80-2.45 (2.05). Sab. Northern portions of 

 eastern hemisphere. 



i, t .,,-,. G - clan gula (Linn.). Golden-eve 1 



" 1 on r^'Sw 17 larg6r biIL MaU : Len S th 18-50-23.00, wing 9.oV- 

 930 (9.18), bill from tip to extremity of frontal angle 1.85-2.05 fl 95) 

 depth at base 1.00-1.10 (1.03), width .82-.S5 (.84), width of nail' 25 

 tarsus 1.50-1.60 (1.57), middle toe 2.40-2.60 (2.45). Female: Length 

 about 16.50, wing 7.90-8.30 (8.14), bill from tip to frontal angle 1 60- 

 1.75 (1.64), depth at base .85-.90 (.89), width .70, width of nail .20, tarsus 

 1.40-1.48 (1.44), middle toe 2.05-2.20 (2.12). Eggs 2.38 X 1-71, dull light 

 pea-green, occasionally ranging to dull pale olive-buffy. Hob. North 

 America generally, breeding from Maine and Canada northward ; in 

 winter, south to Cuba and Mexico. 



151. G. clangula americana (Bonap.). American Golden-eye. 



a\ Height of upper mandible at base, measured from extremity of frontal angle to 



nearest point oil cutting-edge, equal to distance from anterior point of loral 



feathering to anterior end of nostril, and much greater than from latter point 



to tip of upper mandible. 



Adult male : Head and upper neck glossy blue-black, with a large vertical 

 wedge-shaped patch of white across lores ; white wing-patch crossed by 

 a broad bar or band of black; length 21.00-23.00, wing 9.00-9.40 (9.17), 

 bill from tip to frontal angle 1.65-1.80 (1.75), depth at base .95-1.10 

 (1.03), width .7S-.85 (.81), width of nail .35, tarsus 1.50-1.60 (1.57), 

 middle toe 2.45-2.50 (2.47). Adult female : Brown of head (usually a 

 deep sepia or purplish snuff-brown), descending to middle of neck, all 

 round ; gray of chest broader, and usually deeper, and white collar nar- 

 rower, than in same sex of G. clangula; greater wing-coverts always (?) 

 distinctly tipped with blackish ; nail of bill not less than .23 wide ; wing 

 8.25-8.75 (8.46), bill from tip to frontal angle 1.40-1.70 (1.56), depth at 

 base .80-.95 (.88), width .70-.80 (.73), width of nail .23-.30 (.26), tarsus 

 1.30-1.60 (1.46), middle toe 2.10-2.25 (2.19). Eggs 2.47 X 1-77, dull pea- 

 green or pale grayish pea-green. Sab. Northern North America, breed- 

 ing from Gulf of St. Lawrence and Eocky Mouutains of Colorado north- 

 ward ; Greenland ; Iceland ; south, in winter, to New York, Illinois, 

 Utah, etc. ; accidental or occasional in Europe. 



152. G. islandica (Gmel.). Barrow's Golden-eye. 



1 Anas clangula LlKN., S. N. ed. 10, i. 1758, 125. Glancionetta clangula Stejn., Proc. U. S. Nat. Mus. vii. 

 1885, 409. 



14 



