Abstract
THE interesting note of Mr. M. S. Pembrey in your issue of January 2 (p. 199), induces me to draw the attention of your correspondent to a short paper of mine just published (or in course of publication) in the Ibis, where I communicated the experiences of a friend, who had hatched a series of parrot eggs, belonging to the genus Eclectus, in which the young males are green, the young females red. It is remarkable that by far the larger number of the birds hatched were males. In each case only two eggs were laid, and the breeder himself, without being able to tell why, is of opinion that nearly all his hatches consisted of male birds. As there are still many embryos of those Eclectus in my hands, the sex of which is not yet determined, I hope to be able to make known the result of my investigation later, whether the pairs are always males, or always females, or consist of a male and a female bird, at least sometimes. Meanwhile, I should be glad to hear if anything more is known about the sexes of birds which lay only two eggs at a time.
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MEYER, A. The Evolution of Sex. Nature 41, 272 (1890). https://doi.org/10.1038/041272c0
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DOI: https://doi.org/10.1038/041272c0
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