frequency with which three of the same species will be seen in each other's company, usually chasing one another about, and, as with the spur-winged lapwing, these three are almost always made up of a pair (a male and female) and another bird, a male, as I believe. It may be said that here there can be no analogy, for that it is either merely a case of two males courting one female, or that the odd male is both a rival and intruder, endeavouring to come between the married happiness of two who have made their choice. This latter explanation is the one that has generally seemed to me to meet the case, but what I have frequently noticed with surprise is that the state of anger, or, indeed, fury, which one might imagine would obtain under such circumstances between the two male birds, is either wholly absent, or very much subdued. Now it is in the case of our own peewit, more than with any other species, that I have noticed this quite amicable association of three birds, two of which would often seem to be a paired couple, and as my notes, made whilst I had the birds under observation, both illustrate the point and contain the explanation of it which I have to offer, I will here quote from them:
"February 25th.—Three peewits in company with each other. Two are flying close together, as though they were a paired couple, whilst one follows them at a short interval.
"February 27th.—Three peewits flying together in the same way as before—that is to say two, which may be paired birds, are close together, whilst there is commonly a short space between them and the third one. This arrangement may be temporarily
