348 BIRDS OF SOMERSETSHIRE. 
with dusky ; the primary quills are black ; the tertials 
bluish ash, shaded to black at the tips; the two 
elevated tufts of feathers on the back, which appear 
to arise from the greater coverts of the tertials, not 
the tertials themselves, consist of long feathers very 
much arched and very open in the webs, ash-grey in 
colour, margined with rusty; the whole of the under 
parts are ash-grey, with black streaks on the shafts 
of the feathers, like the upper parts. The descrip- 
tion of this bird very nearly agrees with that given 
by Dr. Saxby of one of the two killed in Shetland, 
except that in that bird the crown and fore part of 
the head were dull crimson, and from the eye to the 
occiput there was an elongated patch of dirty white ; 
and the under parts seem to have been mottled 
with two shades of grey. The soft parts of Dr. 
Saxby’s bird were as follows:—Buill horn-colour, 
tinged with green, slightly darker along the ridge 
and palest at the tip,—after drying the whole bill 
becomes dark reddish brown; iris rich golden 
yellow, gradually, becoming darker towards the 
pupil; the tarsi and bare part of the tibize brownish 
black, tinged with olive, the under surface of the 
feet paler; claws black. Yarrell describes the 
adult male as follows :—‘ The beak greenish yellow 
at the base, lighter in colour towards the point; 
irides red; forehead, crown, nape and back of the 
neck dark bluish ash; chin, throat and front of the 
neck of the same dark colour, but descending four 
