Ring-billed Gull delawarensis

delawarensis Ring-billed Gull (last update: 10-03-2014 )
Coordinators: Keith Mueller Amar Ayyash Mars Muusse Index ORG ring projects PDF's 1cy June 1cy July 1cy Aug 1cy Sept 1cy Oct 1cy Nov 1cy Dec 2cy Jan 2cy Feb 2cy March 2cy April 2cy May 2cy June 2cy July 2cy Aug 2cy Sept 2cy Oct 2cy Nov 2cy Dec 3cy Jan 3cy Feb 3cy March 3cy April 3cy May 3cy June 3cy July 3cy Aug 3cy Sept adult Jan adult Feb adult March adult April adult May adult June adult July adult Aug adult Sept adult Oct adult Nov adult Dec	1st cycle (juvenile): June	Ring-billed Gull delawarensis juvenile, June 16 2012, Tinley Park, IL. Picture: Amar Ayyash.
		Ring-billed Gull delawarensis juvenile, June 28 2012, Chicago, IL. Picture: Amar Ayyash.
		Ring-billed Gull delawarensis juvenile, June 29 2005, Whitby, Ontario. Picture: Wikipedia.
		Ring-billed Gull delawarensis juvenile, June 29 2005, Whitby, Ontario. Picture: Wikipedia.
		*Ring-billed Gull delawarensis* juvenile, June 26 2014, Montrose Beach, Chicago, IL. Picture: Steve Spitzer.**
		Ring-billed Gull delawarensis juvenile, June 16 2012, Tinley Park, IL. Picture: Amar Ayyash.