American Herring Gull (smithsonianus)

(last update: October 12, 2015)
Coordinators:
Amar Ayyash (US)
Bruce Mactavish (Canada)
Dave Brown (Canada)
Mars Muusse (Netherlands)

smith rings
smith PDF's

smith 1cy August
smith 1cy September
smith 1cy October
smith 1cy November
smith 1cy December

smith 2cy January
smith 2cy February
smith 2cy March
smith 2cy April
smith 2cy May
smith 2cy June
smith 2cy July
smith 2cy August
smith 2cy September
smith 2cy October
smith 2cy November
smith 2cy December

smith 3cy January
smith 3cy February
smith 3cy March
smith 3cy April
smith 3cy May
smith 3cy June
smith 3cy July
smith 3cy August
smith 3cy September
smith 3cy October
smith 3cy November
smith 3cy December

smith sub-ad January
smith sub-ad February
smith sub-ad March
smith sub-ad April
smith sub-ad May
smith sub-ad June
smith sub-ad July
smith sub-ad August
smith sub-ad September
smith sub-ad October
smith sub-ad November
smith sub-ad December

smith ad January
smith ad February
smith ad March
smith ad April
smith ad May
smith ad June
smith ad July
smith ad August
smith ad September
smith ad October
smith ad November
smith ad December

American Herring Gull (smithsonianus) sub-adult, October 12 2015, Weaver beach - Madison, CT. Picture: Keith Mueller.

Please visit Keith's website and blog!

3rd cycle (3CY) or, more likely, 4th cycle (4CY) bird by the lack of any marbling pattern on central greater coverts or lower tertials.
In rest: adult-like primaries with bold white tips. Upperparts all-grey as in adult. Immature features: large black patches in tail-feathers and relatively large black gonys spot. The open wing may show black centres on the secondaries and centres of the greater primary coverts as well, commonly found in this age class.