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 91
... wood- peckers Difficulties in the study of hole- nesting birds Social nesting. roosting holes by woodpeckers and barbets provides homes for countless birds of other species , which utilize the holes after the excavators are finished with ...
... wood- peckers Difficulties in the study of hole- nesting birds Social nesting. roosting holes by woodpeckers and barbets provides homes for countless birds of other species , which utilize the holes after the excavators are finished with ...
Page 92
... woodpecker nests . Smaller species may usurp a nest freshly constructed by woodpeckers . Old , well - rotted cavities may be enlarged slightly . One to four eggs are laid on the floor of the nest , which may be unlined or lined with a ...
... woodpecker nests . Smaller species may usurp a nest freshly constructed by woodpeckers . Old , well - rotted cavities may be enlarged slightly . One to four eggs are laid on the floor of the nest , which may be unlined or lined with a ...
Page 93
... woodpecker . Also , the size and abundance of dead or dying trees influence the abundance and types of woodpeckers that can occupy an area . From two to nine white eggs are laid on the bare floor of the woodpecker's nest cavity . Most ...
... woodpecker . Also , the size and abundance of dead or dying trees influence the abundance and types of woodpeckers that can occupy an area . From two to nine white eggs are laid on the bare floor of the woodpecker's nest cavity . Most ...
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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