412 FALCONTD-S. 



Falco islandicus, var. albus, Gm. S. N. i. p. 271 (1788, ez Briinn.). 

 Falco candicans, Gm. S. N. i. p. 275 (1788) ; ISchl. Ahhandl. Geh. 

 Zoul. ^c. p. 14 (1841) ; id. liei\ Crit. p. 1 (1844) ; lip. Rev. Zuol. 



JFollei/. p. 85 (1864) ; Gray, Hand-l. B. i. p. 18 (18G9) ; Newt. ed. 



Yarr. Brit. B. i. p. 36 (1871) ; Ilarting, Ilandb. Brit. B. p. 85 



(1872) ; Gould, B. Gt. Br. part xxii. (1872) : Shnrpe, P. Z. S. 



1873, p. 417, pi. xxxix.; ScJil. Revue Accijntr. p. 34 (1873). 

 Falco islandicus, Lath. Ind. Orn. i. p. 32 (1790) ; Stv. S,- Rich. Faun. 



Bor.-Am. p. 27 (1831) ; Gmdd, B. Eur. i. pi. 19 (1837) ; Aud. B. 



Am. fol. pi. 366, et ed. 8vo, i. p. 81, pi. xix. (1839) ; Holboll, Faun. 



Grceid. p. 18 (1854). 

 Falco gyiialco, Pall. Zoogr. Rosso- As. i. p. 324 (1811); Bp. Comp. 



List B. Fur. ^ N. Am. p. 4 (1838). 

 Hierofalco candicans, Cuv. R^gne An. i. p. 312 (1817) ; Bp. Rev. et 



Mail, de Zool. 1854, p. 536 ; Cass. Pr. Phil. Acad. 1855, p. 278 ; 



De'gl. Sf Gerbe, Orn. Fur. i. p. 73 (1867).__ 

 Falco' groenlandicus, Hancock, Ann. N. H. ii. p. 247 (1839). 

 Hierofalco gyrfalco, Kaiip, Contr. Orn. 1850, p. 56. 

 Le Groenlaudais, Schl. Hf Verst. Traite Fauc. pi. 5 (1853). 

 Falco islandicus candicans, Holboll, Zeitschr. Ges. Naturw. iii. p. 426 



(1854). 

 Greenland Falcon, Salvin Sf Brodr. Falconry, pis. xii. & xiii. (1855). 



Adult female. Snowy white, without any markings at all under- 

 neath ; head likewise unspotted, with a slight greyish shade under 

 the eye, and a few narrow hlackish shaft-stripes on the nape ; all 

 the rest of the back scantily marked with blackish spots of irregular 

 form, some oval, some tear-shaped, and some longitudinal ; quills 

 white, with a large subtcrminal patch of brownish black, the shafts 

 black, all the feathers more or less irregularly spotted or notched 

 with blackish on the outer web, less on the inner one, which is 

 white for the greater part of its length ; tail pure white, the shafts 

 white, excepting on the two centre feathers, where they are blackish, 

 inclining gradually to white towards the tips ; cere and orbits pale 

 yellow ; bill pale yellow, bluish at tip ; feet pale yellow ; iris dark 

 brown. Total length 23 inches, culmen 1-5, wing 16-2, tail 9-5, 

 tarsus 2-35. 



Young male. White, mottled aU over with pale brown, which 

 occupies the centre of the feathers of the upper surface, and takes 

 the form of spots and irregular bars on the wing- feathers ; head 

 and sides of the face streaked with brown, and the under surface 

 covered with longitudinal streaks of pale brown ; tail white, with 

 brown cross bands on the centre feathers, breaking up into irregular 



drawn from the birds themselves, but were taken from other engravings (per- 

 haps Brisson's), with the contour slightly altered to suit his page, and then 

 coloured from descriptions. The Norway Falcon he expressly mentions as 

 haying been sent to him. In the 'Ilistoire Naturello,' whieli was published 

 after the ' Planches Enluminees,' he appears to have become acquainted with 

 the Iceland Falcon, as this work contains an excellent figure (pi. xiii.) of the 

 bird, as good, indeed, as the coloured figures in his other work arc bad. 



