The New Encyclopaedia Britannica: Macropaedia : Knowledge in depth |
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Page 75
... ( owls ) Owls constitute a homogeneous order ( Strigiformes ) of primarily nocturnal birds of prey , nearly worldwide in distribution . Their secretive habits , quiet flight , and weird calls have made them the objects of superstition and ...
... ( owls ) Owls constitute a homogeneous order ( Strigiformes ) of primarily nocturnal birds of prey , nearly worldwide in distribution . Their secretive habits , quiet flight , and weird calls have made them the objects of superstition and ...
Page 76
... owl Bubo bubo bay owl Phodilus badius Drawing by R Keane ( bay owl ) and D Malick ( others ) hawk owl Surnia ulula barn owl Tyto alba Figure 36 : Variations in body plan among owls . pygmy owl Glaucidium gnoma mounting . Other calls of the ...
... owl Bubo bubo bay owl Phodilus badius Drawing by R Keane ( bay owl ) and D Malick ( others ) hawk owl Surnia ulula barn owl Tyto alba Figure 36 : Variations in body plan among owls . pygmy owl Glaucidium gnoma mounting . Other calls of the ...
Page 77
... owls , being terrestrial , can run rapidly over the ground and rarely perch in veg- etation . 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 ...
... owls , being terrestrial , can run rapidly over the ground and rarely perch in veg- etation . 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 ...
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20th century adult Africa anemia Anseriformes antibodies antigens areas Asia behaviour bill birds blood group bodhisattva body Bolivia bone boxing Brazil Brazilian breeding broadcasting bryophytes Buddha Buddhist building called Caprimulgiformes centimetres central centre China clotting colonial colour countries cuckoos cultural developed disease display early eggs electrons Eocene falconiforms Family feathers feeding feet female flight forest fossil frequency genera genus gruiform hemoglobin important incubation Indian insects islands known legs Mahāyāna major male marrow metres molt monks nest normal North America owls pair Pāli parrots passerines patterns pelecaniforms penguins percent perch period Piciformes pigeons plasma platelets plumage political population produced programs protein radio red cells region river São Paulo sexes short signal South species sporangium structure Suborder tail television Theravada tion tissue toes tradition trees tropical tube usually Vajrayāna wings woodpeckers World young