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Page 240
NUPTIAL DISPLAY IN BIRDS . So many of the major actions of a bird , such as song , display , courtship , and nesting , are inspired by or due to the sexual impulse that an inquiry into the nature of some of the types of display in use ...
NUPTIAL DISPLAY IN BIRDS . So many of the major actions of a bird , such as song , display , courtship , and nesting , are inspired by or due to the sexual impulse that an inquiry into the nature of some of the types of display in use ...
Page 243
Perhaps it will be clearer if we make a rough tabulation of the various types of display : 1. Direct display of plumagethe direct evolution by natural selection of the original primitive displays of the first birds : examples , the Ruff ...
Perhaps it will be clearer if we make a rough tabulation of the various types of display : 1. Direct display of plumagethe direct evolution by natural selection of the original primitive displays of the first birds : examples , the Ruff ...
Page 250
6 9 display to her the curious shade of bronze on his undercoverts . And finally we have that type where what was originally the courtship between the male and female has become a species of ceremonial indulged in sometimes by male ...
6 9 display to her the curious shade of bronze on his undercoverts . And finally we have that type where what was originally the courtship between the male and female has become a species of ceremonial indulged in sometimes by male ...
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Contents
OCTOBER | 185 |
ART PAGB 1 A Programme of Law Reform | 189 |
ELIA By C E Lawrence | 203 |
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