2. 



FALCO CANDICANS. 



(GREENLAND FALCON.) 



Falco gyrfalco, Briss. Orn. i. p. 370, pi. xxx. fig. 2 (1760). 



Le Gerfaut llanc, Buff. Hist. Nat. Ois. i. p. 241 (1770). 



Falco islandus, var. alius, Gmel. Syst. Nat. i. p. 271 (1788, ex Briinn.). 



Falco candicans, Gmel. Syst. Nat. i. p. 275 (1788). 



Falco islandicus, Lath. Ind. Orn. i. p. 32 (1790). 



Falco gyrfalco, Pall. Zoog. Rosso-As. i. p. 324 (1811, nee Linn.). 



Hierofalco candicans (Gm.), Cuv. Regne Anim. i. p. 312 (1817). 



Falco grcenlandicus, Hancock, Ann. Nat. Hist. ii. p. 247(1839). 



Hierofalco gyrfalco, Kaup, Contr. Orn. 1850, p. 56 (nee Linn.). 



Falco islandicus candicans, Holboll, Zeitschr. ges. Naturw. iii. p. 426 (1854). 



Kirksoviarsuk Jcakortuinak, Greenlandic. 



Figures notaliles. 



DAubenton, PI. Enl. 446 ; Werner, Atlas, Rapaces, pi. 6 ; Naumann, Vog. Deutschl. 

 taf. 21. figs. 1, 2, taf. 390. fig. 1 ; Gould, B. of Eur. pi. 19 ; Audub. B. of Am. pi. 366 ; 

 Elliot, B. N. Am. pi. 12; Susemihl, Vog. Eur. taf. 6a; Salv. & Brod. Falconry, 2nd ed. 

 pis. 10, 12, 13. 



Ad. albus, plumis in corpore suprk, uropygio et alis suprk versus apicem nigro notatis : remigibus albis versus 

 apieem conspicue nigro notatis : Cauda alba immaculata : corpore subtiis albo, bypochondriis vix nigro 

 notatis : rostro flavido, versus apicem pallide corneo : pedibus flavis : iride fusca. 



Juv. capite, collo et corpore subtiis albis, nigro-fusco striatis : corpore supra albo, plumis centraliter guttis 

 elongatis nigro-fuscis notatis, remigibus magis nigro-fusco quam in adulto notatis : cauda alba vix 

 nigro-fusco notata. 



Adult Female (Labrador) . Upper parts pure white, the feathers on the back, rump, and upper surface of 

 the wings marked with a wide V-shaped black spot towards the tip ; quills white, broadly marked with 

 black towards the tip ; tail pure white ; underparts pure white, slightly striated on the lower flanks ; 

 bill yellowish, towards the tip horn-coloured ; legs yellowish ; claws light horn ; iris dark brown. 

 Total length about 23 inches, culmen 1-5, wing 16 - 5, tail 9'8, tarsus 30. 



Young (Greenland) . Head, neck, and underparts white ; the head, breast, and flanks with narrow blackish 

 brown striations ; upper parts white with long, almost drop-shaped, brownish black central markings ; 

 quills with more black on them than in the adult ; tail white with a very few dark markings. 



Obs. The two specimens above described appear to me to belong both to the palest form of this species. 

 Other adult birds have the upper parts more conspicuously marked with black, the markings being 



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