RED-BACKED SHRIKE. 609 
sometimes are so thickly massed on the large end of the egg as to entirely 
conceal the ground-colour. In some eggs the markings are finely powdered 
on the shell; in others they take the form of bold spots and blotches ; and 
in all eggs the underlying spots are both numerous and well defined. The 
eggs vary in length from ‘95 to ‘8 inch, and in breadth from 7 to ‘62 inch. 
It is very difficult to distinguish between the eggs of the present species 
and those of the Woodchat Shrike. The latter bird’s are, however, on an 
average larger, not so bright, and usually more boldly marked. 
When the young are being reared, the parent birds are even more daring 
and vigilant in search of food; and when the young birds quit the nest 
they are still accompanied by their parents—a noisy little band, exciting 
the attention of all observers by their harsh notes as they chase the insects 
and fly from bush to bush. It 1s very probable, as the Red-backed Shrike 
only rears one brood in the season, that these parties keep together and 
migrate in company. As is the case with most late immigrants, the birds 
quit our shores early in autumn, leaving for their winter quarters in 
September. Messrs. Sharpe and Dresser mention an instance, however, 
where a young bird of this species was seen by them as late as the 11th 
of Novem\er. 
The male of this beautiful bird has the head, nape, upper back, rump, 
and upper tail-coverts clear slate-grey ; the back and scapulars are rich 
chestnut-brown ; the wing-coverts are black, broadly edged with rich chest- 
nut ; the wings are black, the primaries very narrowly and the secondaries 
broadly margined with chestnut. The two central tail-feathers are black ; 
the rest have the basal half white, the terminal half black tipped and 
narrowly margined with white. A narrow frontal line, the lores, the 
feathers round the eye, and the ear-coverts are black; the underparts are 
rosy red, shading into white on the chin and under tail-coverts. Bill 
black; legs, toes, and claws black; irides dark brown. The female 
usually differs considerably from the male. She has no black about the 
head; and the whole of the upper parts are reddish brown; above the 
eye is a pale buff streak; the wings are similar in colour to those of 
the male, but the rufous margins are paler and not so broad; the tail 
is brownish red, tipped with buff and margined on the outer web of 
the outside feather with dull white. The general colour of the under- 
parts is buffish white, transversely barred on the sides of the neck, the 
breast, and the flanks with brown. Young birds resemble the female 
above described, but have the upper parts also barred and the eye-stripe 
very indistinct. 
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