The Evolution of Bird Song With Observations On the Influence of Heredity And L
The Evolution of Bird Song With Observations On the Influence of Heredity And L
Charles a Witchell
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A. R. Winnington-Ingram, a careful observer, informed me that he had heard the cry of the lapwing uttered by young birds of that species while in their shells. There could have been no mistake about the matter, for the eggs containing the birds had then been removed to the rectory at Lassington. Birds also may inherit a knowledge of the cries of their parents, and some of them when only lately hatched, or, according to Mr. Hudson, when chipping their way out of the shells, immediately become si...lent if the parent utters a cry of alarm in the vicinity. The latter observer was of the opinion that some young of the rhea, or South American ostrich, reared by him, had so strongly inherited this knowledge, that, when he imitated the alarm-cry of the species, they ran to him for shelter. But it appears that the birds in question had been captured "just after they had hatched out, " and therefore they might possibly have been partly educated by their parent, for we know that very young birds are generally apt pupils.
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