Thayer's Gulls   Larus thayeri 
Feb. 28th 2009 Choshi Chiba Japan


At least 8 Thayer's Gulls were found on the day. Usually 5-10 birds can be found in one day this winter. They seem to be increasing  in recent years.

Adult






2nd winter





The molt is advanced for 2nd winter. Some wing coverts and P1-P2 are new.



2nd winter







1st winter


A very fresh individual for this time of year, mostly juvenile plumage.




1st winter




1st winter



1st winter


A relatively breached bird.