Note 2 — BULLETIN OF THE NUTTALL ORNITHOLOGICAL CLUB. VOL. VII. January, 1882. No. I.
Reading edition
After many careful examinations of the type specimen, I am led to the conclusion that it does represent the perfect colored phase, since no combination, or division, of the markings of A. herodias and A. occidentalis—or, in other words, no partial development of the head-pattern of the former—would give the peculiar markings which distinguish A. würdemanni.