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2022-06-14
Karakalpakstan |
© Natalya Marmazinskaya
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Adult Pale-backed Pigeon is bluish-grey with heavy brownish tinge on fore-back and wing coverts. Upper- and undertail are much darker than main color. Rear-back and rump are very pale, laight-grey, sometimes almost white. Crown and beast are with dark-pinkish tinge; flanks and rear part of neck are with green metallic gloss, in some positions this gloss is purple. Primaries are black-brownish with pale-grey base part of inner web; secondaries are pale-grey with dark tips; underwing coverts and axillaries are pale-grey or white. Two dark broken wing-bars are formed by two rows of black spots. Tail feathers are dark-grey terminal darkened and almost black in tip. Bill is dark-grey in base and greenish-yellow in tip. Legs are reddish or yellowish. Eyes are yellow. In field Pale-backed Pigeon is similar to Rock Pigeon because both show white rump in flight. From Stock Dove Pale-backed Pigeon is distinguished by this white rump. Young birds don't have metallic gloss; all its plumage is dimmer and browner than in adults. Sizes: wing 190-210, tail 95-105, tarsus 22-28, bill 15-20 mm.
"Птицы Казахстана" том 2. "Наука". Алма-Ата, 1962.
