Remsen, XV. 1976 [illegible] headed Gall whambiv extensus ridibundus Arzola [real] [illegible] for this, the head is mostly bluish gray, especially on the crown where it was darkest. The forehead and an area behind the eye were dark but - broadly plumy and not complete - there was a white patch which I could tell if it was complete. The bill was shining tomaceous first to off which shined slightly with sheen of chestnut-brown to reddish brown depending on the light. shining off, otherwise quite smooth and polished and you had all male subadults in my opinion, adults and birds of both sexes, tilting it was great for the moment, if you could not see the white patch behind which should not be interpreted as a sex feature - we never had one. It would certainly satisfy any study of the...