SUDAN BIRDS

9.
KEY TO SPBonss.f
Family FRINGILLIDM.
Cutting-edges of the mandibles not
coterminus, leaving a gap in the
outline of the closed bill; mandibular
angle at chin very acute ... 7
Cutting-edges of the mandibles coterminus,
or nearly so ; mandibular
angle at chin very slightly
indicated ... ... ... ... 2
Adult with the bill red in life, and
some rosy red colouring on the
plumage, brightest on the wings
and tail ... ... ... ... Bucanetes githagineus, 692.
!fo red on the plumage ... ... 3
r Basal half of the bill much swollen,
remainder compressed, causing the
sides to be very strongly curved Serinus mozambicus, 691.
Bill less swollen, fairly long and more
slender, with the sides nearly
(_ straight from base to tip 4
("Nostrils covered by plumes ... 5
\Nostrils exposed ... ... ... Ploceidm {Passerinm (see key on
page 90).
f Crown uniform
\
^Crown streaked
...
...
...
...
... Ploceidm (Passerinm (see key on
page 90).
... 6
{ Rump brown ... ... ... ... Poliospiza gularis, 689.
Rump white ... ... ... Poliospiza leucopygia, 690%
("Tail with a white pattern on the
i outer feathers ... ... ... 8
{
LTail without any white pattern ... 14
Some bright yellow on the chest;
under tail-coverts white ... ... 9
No bright yellow on the chest; under
tail-coverts buff or tawny ... 11
("Back more uniform ; mantle cinnamon 10
\Back strongly mottled Emberiza cabanisi, 693.
_„ /Some white on the wing-coverts ... Emberiza flaviventris, 694.
\No white on wing-coverts ... ... Emberiza affinis, 695.
("No streaks on throat ... ... 12
. J ("Emberiza hortulana, juv., 696.
] Throat streaked •< Emberiza cwsia, juv., 697.
(_ {^Emberiza cineracea, juv., 698.
f Upper throat yellow ... ... 13
12. •< Upper throat pale rufous ; crop and
[_ most of head grey Emberiza cassia, 697.
("Abdomen rufous buff ; thighs
13. < yellowish Emberiza hortulana, 696.
^Abdomen yellowish or brownish white Emberiza cineracea, 698.
("No white or black on head and throat Fringillaria striolala, juv., 700.
\Head striped with black and white ... 15
t—After Shelley, " Birds of Africa."
105