SUDAN BIRDS

9.
/"Back heavily streaked
\Back indistinctly streaked
Tail not very short (three-fourths of
wing, or longer), and of spotted, fan
pattern below; top of head of male
in summer a strong pattern of brown
Tail short (three-fifths of wing, or
shorter), and of plain black pattern
above and below; top of head of
^ male in summer nearly uniform red
["Tail of spotted fan pattern above as
I well as below ; rump rather redder
6. -{ than the back
Tail of spotted fan pattern below only,
plain black pattern above ...
12.
13.
14.
f Plumage rather pale sandy coloured ;
I all but the central pair of tailj
feathers conspicuously tipped with
< white
Plumage brighter; only the outer
I tail-feathers conspicuously tipped
i with white ...
("Top of head bright red in distinct
| contrast with the rest of the upper
8. ~l parts ...
I Top of head not contrasting with the
(_ rest of the upper parts ...
{ Upper parts brown ...
Upper parts bright foxy red ...
f Back at all seasons a strong pattern of
buffs, browns and greys, marked
10. J with dark brown to black ...
Back at all seasons plain, or no more
(_ than faintly dappled
f Pattern of upper side mostly rather
I soft and not very black, tail-tips
,, J dull coloured
| Pattern of upper side mostly very
I bold and black, tail-tips white or
{_ whitish
Top of head red, contrasting in colour
with the rest of the upper parts ...
Top of head coloured like the rest of
(_ the upper parts
First primary very broad ; edges of
wing-feathers reddish ; white eyebrow
terminating at eye ...
First primary narrower; edges of
wing-feathers not reddish ; white
eyebrow continuing behind eye ...
... S
... C. brachyptera (winter), 470.
C. eximia (summer), 462.
C. juneidis, 460.
C. aridula, 461.
C. eximia (winter), 462.
C. ruficeps (summer), 472.
9
C. brachyptera, 470.
C. troglodytes, 471.
11
12
C. chiniana, 463.
c.
13
14
C. canians, 466.
c.
galactotee, 468.
ernini, 465.
First primary very broad; face
reddish
C. erythrops, 464.
1 First primary narrower ; face not
[ reddish
C. laUralis, 467.
41