NORWEGIAN JER-FALCON. 29 
These markings, constantly of a transverse form, are 
larger and more numerous upon the greater wing 
coyerts and secondaries, where they take the form of 
bands more or less complete, and are often pointed 
with brown in the centre. The clear tint of which 
we have spoken is paler and more dirty upon the 
upper tail coverts, and it there becomes uppermost, 
so that the darker tint appears under the form of 
crescentic-transverse bands. Upon the sides of the 
rump the clear tint approaches to whitish, and the 
transverse bands are of a dark grey approaching to 
violet blue. The ground colour of the primaries ap- 
proaches strongly to blackish brown; the brownish grey 
spots of the external barbs of these feathers is lost 
towards their extremity, which is of a fine glossy 
white; the spots, on the contrary which are on the 
imner barbs of the quill feathers, are as pale on the 
inferior surface of the wings, while on the upper sur- 
face they approach to reddish brown, which again 
changes to white on the anterior feathers. The bright 
bands of the tail, of which there are from fourteen to 
fifteen, are of a dirtier tint than the spots above the 
body, and they are covered distinctly towards the cen- 
tre with numerous confluent spots of a pale brown. 
These bands being rather large the dark tints appear 
upon the tail in the form of narrow streaks, sometimes 
continuous, sometimes opposite, sometimes in an arch 
or crescent, and are darker towards the extremity of 
the tail, which is of a more or less dirty white. 
The under surface of the tail is generally paler than 
the upper. The lesser wing coverts are ornamented 
with clear spots, sometimes of an orbicular or oval 
form, and those spots are transverse on the greater 
wing coyerts. The ground colour of the superior parts 
