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IORC Number
1985.154

Species/Form in Question
Mew Gull (European)

Scientific Name
Larus canus canus

Current Status of Record:
Rejected

Date of Initial Sighting:
1985-02-11

Date of Last Sighting:
1985-02-11

Quantity:
1

Age/Gender:
Immature

Observers(s)

Location
Montrose Harbor, Chicago

Counties Observed in:
Cook

References
1st IORC Report


Details
The most definitive feature of immatures of this form versus Ring-billed Gull - the patterning of the wing coverts - was not described, and the other relevant factors were not described in sufficient detail. This subspecies can very closely approach Ring-billed Gull in many respects and would probably need to be photographed to be accepted.
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