The New Encyclopaedia Britannica: A - K.Encyclopaedia Britannica, 1997 |
From inside the book
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Page 73
... cuckoos . Other cuckoos make their own nests , in which they incubate their eggs and rear their young as do most birds ; and still others ( Crotophaga and Guira ) build communal nests . Some cuckoos are among the few birds that feed ...
... cuckoos . Other cuckoos make their own nests , in which they incubate their eggs and rear their young as do most birds ; and still others ( Crotophaga and Guira ) build communal nests . Some cuckoos are among the few birds that feed ...
Page 74
... cuckoo is able to place her egg in the nest after the host has started the clutch but before incubation has begun . It is well established that the common cuckoo lays eggs at 48 - hour intervals , and apparently some glossy cuckoos lay ...
... cuckoo is able to place her egg in the nest after the host has started the clutch but before incubation has begun . It is well established that the common cuckoo lays eggs at 48 - hour intervals , and apparently some glossy cuckoos lay ...
Page 75
... cuckoos migrate toward or across the equator for the winter . The migrations of some species are remarkable in that the young of the year travel com- pletely independently of their parents and may cross up to 3,200 kilometres ( 2,000 ...
... cuckoos migrate toward or across the equator for the winter . The migrations of some species are remarkable in that the young of the year travel com- pletely independently of their parents and may cross up to 3,200 kilometres ( 2,000 ...
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19th century adult America anemia antibodies antigens 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 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 molt monks nest normal North oilbird 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