34 
is distinguished by the extreme whiteness of its plumage, and by 
the young being lightly coloured from the nest. 
Se ATCO CANDICANS 9 27/78 0°20" 0702) cmv O) plea arena 
GREENLAND Fatcon (dark race). 
My plate represents a supposed dark race of the preceding species ; 
but as the strongly defined marks on the back vary considerably in 
different individuals, and the tail-feathers differ still more so, some 
being wholly white, others barred, and others, again, having irregular 
dark markings, I am induced to regard these darkly marked birds as 
the result of a cross between /’. tslandus and I. candicans. The 
young appear to be lightly coloured from the nest ; but a considerable 
difference takes place at the first moult, when the feathers of the 
back are ornamented with long and broad blotches, offering a strong 
contrast to the narrow, lunate cross markings of the old bird. I have 
been induced to give two figures of these unusually marked birds. 
LO) HATCOXCANDICANS?.!/)'3) 2g S90 we eal.eie, RE Mole Eaexeve 
GREENLAND Fatcon (dark race, young). 
Lord Cawdor’s bird, now in the British Museum, from which 
my figure of the Gyr Falcon in the ‘ Birds of Europe,’ and Mr. 
Yarrell’s in his ‘ British Birds,’ were taken, is a young specimen of 
this race ; and it is in this stage that most of the individuals are 
found with us. 
ZO. BAtco GYRRALCO. <9 6 % 4) 225% oe i Woleeae leave 
Norweatan, or Gyr Fatcon. 
The true Gyr Falcon of Norway, Sweden, Finland, and Western 
Russia is a smaller bird than the three preceding ; and both the adult 
and young are darker in colour. As yet, it has not been found in 
the British Islands, although its native country is so near at hand. 
The plate has been given to show the differences which exist among 
these northern Falcons, to which Professor Kaup has applied the 
separate generic appellation of Hierofalco. 
21. BALCO.PEREGRINUS . . «. & dos « ~ Nol. JesRibexeyaiie 
PEREGRINE Fatcon. 
Besides Great Britain, the Peregrine frequents Greenland, Iceland, 
the whole of Europe, North Africa, India, and China. 
The following note, illustrative of one of the habits of this bird. 
kindly communicated to me by the Duke of Argyll, will prove of 
interest. It is dated from Inverary, June 4, 1868. ‘I find we are 
rich this year in nests of the Falconide :—two of the Peregrine ; two 
of the Hen-Harrier, and a third, the spot not yet discovered ; and one 
of the Merlin. One of my keepers, who is, I think, a reliable man, 
tells me that the day before yesterday, when he was watching one of 
the Peregrines’ nests, he saw the male come from across Loch Fyne 
