Territory in Bird Life

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Author: H. Eliot Howard
Published: 1920
Language: English
Wordcount: 78,339 / 239 pg
Flesch-Kincaid Reading Ease: 36.9
LoC Category: QH
Downloads: 348
Added to site: 2010.04.15
mnybks.net#: 27357
Origin: gutenberg.org
Genres: Science, Nature
Excerpt

orms part of the hereditary equipment of the bird, how is the process of reproduction furthered? The mere fact of remaining in or about a particular spot cannot render the attainment of reproduction any less arduous, and may indeed add to the difficulties, for any number of individuals might congregate together and mutually affect one another's interests. A second disposition comes, however, into functional activity at much the same stage of sexual development, and manifests itself in the male's intolerance of other individuals. And the two combined open up an avenue through which the individual can approach the goal of reproduction. In terms of the theory I shall refer to this second disposition as the one which is concerned with the defence of the territory.

Broadly speaking, these two dispositions may be regarded as the basis upon which the breeding territory is founded. Yet inasmuch as the survival value of the dispositions themselves must have depended upon the success of the process as a whole, i

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