APPENDIX. 325 



of the Parrot-Crossbill, only differs from the typical form in 

 the enlarged size of its bill ; it is said to breed in the forests 

 of Scandinavia and north Russia along with the typical race. 

 It cannot therefore be regarded as a subspecies, but merely 

 as a variation or dimorphism. Individuals with large bills 

 occasionally occur in England and Scotland and have been 

 referred to this form. The Committee have been unable to 

 recognise it as a distinct species or subspecies. 



Junco hyemalis. SLATE-COLOURED JUNCO. 



Fringilla hyemalis Linnceus, Syst. Nat. 1758, p. 183 : 

 Carolina. 



Junco hiemalis (Linn.} Sliarpc, Cat. Birds B. M. xii. 1888, 

 p. 647 ; Barrington, Irish Nat. 1906, p. 137. 



An example was captured in co. Clare, Ireland, May 

 1905. 



The Slate-coloured Junco breeds in northern North 

 America from Alaska to the mountains of Pennsylvania, 

 and winters throughout the eastern United States. Some 

 nine allied races replace it in other parts of North America. 



Zonotrichia albicollis. WHITE-THROATED 

 SPARROW. 



Fringilla albicollis Gmelin, Syst, Nat. i. pt. 2, 1789, 

 p. 921 : Pennsylvania. 



Zonotrichia albicollis (Gmel.) ; B. 0. V. List, 1st ed. 1883, p. 63; 

 Sharpe, Cat. Birds B. M. xii. 1888, p. 598; Sounders, 

 Manual, 2nd ed. 1899, p. 178. 



Reported from near Aberdeen, Aug. 18G7, near Brighton, 

 March 1872, Holderness, Yorkshire, Feb. 1893, and the 

 Flannan Isles, Outer Hebrides, May 1909 ; probably all had 

 escaped from confinement. 



