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Raamatud Books 1 - 3 of 3 on At times 4 or 5 individuals become detached, and until they can unite with a stronger....
" At times 4 or 5 individuals become detached, and until they can unite with a stronger party they fly Irregularly about as though bewildered, continually uttering their harsh notes, and hurry eagerly away to join the first flock that comes in view. The... "
Bulletin of the Nuttall Ornithological Club - Page 135
by Nuttall Ornithological Club - 1881
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The Game Birds of California ...

Joseph Grinnell, Harold Child Bryant, Tracy Irwin Storer - 1918 - 642 lehte
...continually uttering their harsh notes, and hurry eagerly away to join the first flock that cornea in view. The order of flight is invariably a single...to allow a free wing-stroke. Thus ranged the flock seems governed by a single impulse, which sends it gliding along parallel and close to the ground,...
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Life Histories of North American Wild Fowl: Order Anseres (part)

Arthur Cleveland Bent - 1923
...comprising from 20 to 50 or more, and it Is rare to see less than 10 or 15 In a party. At times 4 or 5 individuals become detached, and until they can unite...room enough between the individuals to allow a free wing stroke. Thus ranged, the flock seems governed by a single impulse, which sends it gliding along...
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Life Histories of North American Wild Fowl, 1–2. köide

Arthur Cleveland Bent - 1962 - 865 lehte
...flock that comes in view. The order of flight is inruriahly a single raak, the blrds moving side hy side in a line at right angles to their course so that the entire strength of a flock ls to he ssen at a glance along its front, which at times covers several bundred yards. There is harely...
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