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Lesser Black-backed Gull Larus fuscus

2cy graellsii, Warks, September 2007


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Second calendar-year LBB, Warks, Sept 2007

A. R. Dean

Note second-generation tertials, plain grey feathers appearing in mantle and scapulars, and dropped outer median coverts. This is a typical LBB moulting from first-summer to second winter. However, birds in their second and third calendar-years can be very variable in the extent to which they obtain plain, dark grey (adult-like) feathers and some individuals can be difficult to age.


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