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Isabelline Shrike

Lanius isabellinus (Hemprich et Ehrenberg, 1833)

Буланый жулан

2018-03-18
Syrkhandarya region, near Baysun
© Maksim Mitropolskiy

Description

The adult male of Isabelline Shrike has grayish-clayey crown, nape and mantle; the forehead is yellowish-buffy, the ear coverts are black, the narrow strip under eye and spot before eye are black, the spot behind eye is white. The flight feathers are brownish with buffy edges, but bases of the primaries are buffy-white and form the little speculum some hidden by the wing coverts. The uppertail is rufous; tail is rufous brownish tinged on the end. The throat, breast and flanks are pale-buffy. The adult female is almost same the male, but generally paler above, underparts are off-white buffy tinged; the dark spots on head-sides are brownish not black; the spot over the eye is whitish-buffy not white. The bill is dark-brownish lighted on the low mandible base. Legs are brownish, eyes are brown. Juveniles in first plumage are mottled. There are brownish scaly pattern on the head and uppertail, the wing coverts are with pale centers, brownish terminal strips and pale edges. The flight feathers have brown pale buffy edges. The throat is off-white; the neck-sides, breast, abdomen and flanks have brownish scaly pattern on the dirty-whitish-buffy background. The speculum on the wing is absent. In autumn after the molting the juveniles are plain clayey above and pale-buffy below, the speculum is usually invisible. Sizes: males – wing 85-93, tail 78-92; females – wing 85-94, tail 80-86 mm. Weight 26-33.5 grams.

References

"Птицы Казахстана" том 3. "Наука". Алма-Ата, 1970.

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