"I suppose the correct terminology would be that G. fortis evolved a smaller beak due to competition from a larger billed recent imigrant . I suppose that we just are n't subjected to the same word selection pressures this side of the Atlantic ."
"Well , I did say I was being nit-picky : all I was objecting to was the way the original wording suggested that the change was occurring in order to avoid competition . Assuming it was due to selection , the competition from the larger birds was the putative agent of that selection . ( Incidentally , I suspect we live on the same side of the Atlantic . )"
"I suppose that we just are n't subjected to the same word selection pressures this side of the Atlantic ."
"Well , I did say I was being nit-picky"