The New Encyclopaedia Britannica: A - K.Encyclopaedia Britannica, 1997 |
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Page 78
... oilbird ) The order Caprimulgiformes includes about 100 species of soft - plumaged birds , the major groups of which are called nightjars , nighthawks , potoos , frogmouths , and owlet frog- mouths . The order also includes the aberrant ...
... oilbird ) The order Caprimulgiformes includes about 100 species of soft - plumaged birds , the major groups of which are called nightjars , nighthawks , potoos , frogmouths , and owlet frog- mouths . The order also includes the aberrant ...
Page 79
A - K. Com- petition between species The frugivorous oilbirds Echoloca- tion by the oilbird Behaviour of the nestling Lowering. tive and at rest , resembling small , long - tailed owls . Potoos and frogmouths frequently sit crosswise and ...
A - K. Com- petition between species The frugivorous oilbirds Echoloca- tion by the oilbird Behaviour of the nestling Lowering. tive and at rest , resembling small , long - tailed owls . Potoos and frogmouths frequently sit crosswise and ...
Page 81
... oilbird , soft plumage , in which browns and grays predominate . The size of the gape is astonishing . When the bird opens its mouth , the opening seems to span the entire head , which is nearly the case . The beak , always somewhat ...
... oilbird , soft plumage , in which browns and grays predominate . The size of the gape is astonishing . When the bird opens its mouth , the opening seems to span the entire head , which is nearly the case . The beak , always somewhat ...
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