FALCONIDAZ—HAWKS. 161 
white, mottled with blackish ; wings and tail dark greyish-brown, 
the latter barred with darker brown ; under parts white, closely 
barred with blackish-brown, especially on fore parts, where many 
of the feathers have also median streaks of blackish ; bill pale 
horn-colour ; cere, legs and feet yellow ; irides orange. Length 
IQ to 23 inches; culmen 1°3; wing 13 to 14°5; tail 9°5 to11; 
tarsus 2°75 to 3. 
Young: White parts of head tinged with ferruginous ; most 
of back feathers tipped with buffish; tail showing five broad 
bars ; under parts greyish or pale buff, each feather having a 
central, longitudinal, drop-shaped brown mark; legs and feet 
yellowish-brown. 
Distribution: Ranges over the whole of the Palearctic 
region. Of rare occurrence in Great Britain. 
Habitat: Forest and open country, chiefly the former. 
Genus ACCIPITER. 
SPARROW-HAWK. 
Accipiter nisus (Zzzz). 
Adult Male: Adove brownish ashy-grey ; feathers on nape 
white at base, some of white showing above; tail and under 
surface of wings barred with brown ; cheeks and uzder parts 
dull white or washed with ferruginous, Jarred (especially on 
hinder parts) z7¢# darker rufous or rufous-brown ; bill bluish- 
horn ; cere, legs and feet yellow ; irides orange. Length about 
12 inches ; culmen 0°65; wing 7.5 to 7.9; tail 6; tarsus 2. 
Adult Female: Above greyish-brown, darker on head and 
neck ; superciliary region streaked with white; a large amount 
of white showing on hind neck: ear-coverts and interscapular 
feathers edged with rufous; some of wing-coverts and inner- 
most secondaries white in centre; primaries blotched with white 
on inner webs ; tail-feathers crossed by five broad dusky bars, 
and more or less conspicuously pale or even white tipped ; 
beneath white ; chin and throat finely streaked with brown ; 
breast feathers closely barred or marked with triangular blotches 
of brown ; rest of under parts regularly barred, more narrowly 
M 
