delawarensis Ring-billed Gull(last update:
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Coordinators: 1cy June 2cy Jan 3cy Jan adult Jan |
Ring-billed Gull delawarensis 2nd PB moult (3CY), May 31 2011, Naperville, IL. Picture: Chad Horwedel.Visit Chad's Flickr photo's. Note black spots in tail. Bird just starting 2nd PB moult, now getting into adult plumage. Inner primary P1 just dropped. |