One of John’s (and Addie’s) favorite journalists (along with Charles Kuralt) was Los Angeles Times journalist Jack Smith. In response to a column in 1974 in which Smith mused on his recent observation of a butterfly attacking a bird, John wrote a letter containing the following:
For more than forty years I have retained a vivid boyhood memory of the sight of a butterfly "attacking" a bird…I talked to my colleague, Dr. Patrick H. Wells, who is currently studying the life history and behavior of monarch butterflies. He reports that in the breeding season a stimulated male will attempt to mate with any available female by pouncing on her in flight. If no female is available, however, the contact may be made with another moving object such as a falling leaf.
With this information in mind, I suggest the hypothesis that the reported interactions of butterflies and birds are isolated incidents of misplaced amorous behavior by male butterflies.
Since interest in this phenomenon results largely from our anthropomorphic judgment that it is irrational for butterflies to chase birds, we could carry the anthropomorphism to an extremity by musing on the bird’s reaction to the encounter. Arriving back at the flock, my blackbird might have said "You’ll never believe what happened to me as I was flying over Hollywood today. A hyper-sexed butterfly tried to rape me!”
Jack Smith responded with the following note to John:
Thank you for your thoughts on butterflies chasing birds. I am persuaded that your theory is correct—that what we have here is misplaced amorous behavior.
Having been guilty of misplaced amorous behavior on a few occasions myself, I’m surprised that I didn’t think of it first.
I don’t know whether I dare impose another butterfly-bird column on the patient readers, but I am going to keep the McMenamin hypotheses close at hand, in case.
Jack Smith did in fact write another column, first quoting much of John’s letter, then a letter from Robert Michael Pyle from Yale, who suggested that his observation of an Admiral butterfly attacking a gull could be a “courtship chase.” The column ended with the following:
I suppose it's a controversy that may rage on quietly for decades in the scientific journals. As far as I’m concerned, though, the evidence is in. McMenamin, Wells and Pyle can call it what they like. I call it rape.
And like so much of what we learn from scientific observation, it just proves what we’ve known all along. A gull can’t be too careful.
Given John's love of puns and his sense of humor, he absolutely loved this.