The New Encyclopædia Britannica: In 32 Volumes. A-ak - Bayes, Volume 1Philip W. Goetz, Dale H. Hoiberg, Robert MacHenry Encyclopædia Britannica, 1992 - 32 pages |
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Page 30
... behaviour Pair- forming displays ture of the feathers being nibbled into the interlocking position necessary to prevent the entry of water . Rear- rangement of the feathers involves preening , scratching with the feet , and a general ...
... behaviour Pair- forming displays ture of the feathers being nibbled into the interlocking position necessary to prevent the entry of water . Rear- rangement of the feathers involves preening , scratching with the feet , and a general ...
Page 31
... behaviour Many other aspects of waterfowl behaviour show a sim- ilar interweaving of innate and learned responses . Thus the young bird hatches with distinct preferences as regards the colour , size , and shape of objects at which it ...
... behaviour Many other aspects of waterfowl behaviour show a sim- ilar interweaving of innate and learned responses . Thus the young bird hatches with distinct preferences as regards the colour , size , and shape of objects at which it ...
Page 36
... behaviour of herons Nest structure Feeding of nestlings Orna-. cal enlargement ( bulla ) ; sexes differ in voice , and also usually in plumage and behaviour ; brief pair bond and family life . Double annual molt ; males often alternate a ...
... behaviour of herons Nest structure Feeding of nestlings Orna-. cal enlargement ( bulla ) ; sexes differ in voice , and also usually in plumage and behaviour ; brief pair bond and family life . Double annual molt ; males often alternate a ...
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19th century adult America anemia antibodies antigens areas Asia behaviour bill birds blood group bodhisattva body Bolivia bone Brazil Brazilian breeding broadcasting bryophytes Buddha Buddhist building called Caprimulgiformes centimetres central centre China clotting colonial colour countries cuckoos cultural disease display early eggs electrons Eocene falconiforms Family feathers feeding feet female forest fossil frequency genera genus gruiform hemoglobin important incubation Indian insects islands known legs light Mahāyāna major male marrow metres monks nest nightjars normal North owls pair Pāli parrots passerines pattern pelecaniforms penguins percent perch period Piciformes pigeons plasma platelets plumage political population produced programs protein radio red cells region river São Paulo scanning sexes short signal South species sporangium structure Suborder surface tail television Theravada tion tissue toes tradition trees tropical tube usually Vajrayāna varies wings woodpeckers World young