Slaty-backed Gull. Larus schistisagus.

June 2008. St. Paul. Pribilof Island's. Alaska.

Only one full bird seen for certain as hybrid's are common.

2nd summer.

Slaty-backed Gull. Larus schistisagus.

June 2008. Nome. Alaska.

Five were identified as pure type birds, although these are always open to question.

1st summer.

Slaty-backed Gull. Larus schistisagus.

June 2008. St. Paul. Pribilof Island's. Alaska.

Only one full bird seen for certain as hybrid's are common.

2nd summer.

Slaty-backed Gull. Larus schistisagus.

June 2008. Nome. Alaska.

Not a straight cut bird but can be assumed to be pure?

1st summer.

Slaty-backed Gull. Larus schistisagus.

June 2008. Nome. Alaska.

This is certainly a good bird, note the amount of white in the tertials.

3rd summer perhaps, aging these can be tricky as they often show advanced moult than other parts of the upper body and wing.

Moose.

June 2008. Nome. Alaska.

Seen daily but only in one or twos, mostly shy but can be dangerous if met by surprise or with calves.