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Prior to settling to sleep, the bird usually preens again, but activity is reduced
once the bird has settled on the perch for the night. Finally, when light fails, the
raptor falls asleep on its perch and remains thus without moving until the
The burrowing owls, being terrestrial, can run rapidly over the ground and rarely
perch in vegetation. The typical perch of other owls is a horizontal branch in a
tree. The bay owl habitually perches on the vertical trunk of a tree, with the legs ...
Potoos and frogmouths frequently sit crosswise and upright when actively
foraging and also appear very owllike, although at rest they may perch quite
differently. The potoos are noted for a peculiar stance, perching usually at the top
of a ...
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The New Encyclopaedia Britannica (Encyclopaedia)User Review - Not Available - Book Verdict
For virtually all its 238 years,Britannica has ruled the shelves as a peerless general encyclopedia. Reviewers have consistently given it high marks for most of the 12 criteria identified inKister's ... Read full review