Some American Gulls

I should point out here and now that I know nothing about gulls, so if anyone sees an error in my ID or ageing of these birds I'm happy to learn more.

Ring-billed Gull

1st winter; Florida USA November 2012

1st summer; Connecticut USA May 2012

Adult winter; California USA December 2012

Laughing Gull

Winter roost; Florida USA December 2012

1st winter; Florida USA December 2012

Adult winter; Florida USA December 2012

Adult winter; Florida USA December 2012

Heermann's Gull

Adult winter (back) adult summer (middle) and 1st winter;
California USA December 2012

2nd winter; California USA December 2012

Adult summer; California USA December 2012

American Herring Gull

1st winter; Connecticut USA May 2012

2nd summer; Connecticut USA May 2012

3rd winter/summer; Connecticut USA May 2012

Adult summer; Connecticut USA May 2012

Adult summer; Connecticut USA May 2012

 Lesser Black-backed Gull

Adult winter; Florida USA November 2012

This bird was seen to attack a Ruddy Turnstone which escaped, but the bird then tried to catch other waders within range.

Same individual with Ruddy Turnstone in its bill

Ruddy Turnstone escapes the gull still has a feather in its bill

The frustrated gull lunges after nearby Sanderlings

The Sanderlings get away easily.

Olrog's Gull

1st Winter; Rio Grande do Sul Brazil June 2011

Same bird; squabbling with 1st winter Kelp Gull Rio Grande do
Sul Brazil June 2011

Same bird; Rio Grande do Sul Brazil June 2011

Same bird; Rio Grande do Sul Brazil June 2011; head detail.

Brown-hooded Gull

Adult winter; Rio Grande do Sul Brazil June 2011

Adult summer; Rio Grande do Sul Brazil June 2011

Kelp Gull

Juvenile; São Paulo Brazil February 2012

1st winters; Rio Grande do Sul Brazil June 2011

3rd summer; São Paulo Brazil November 2011

Adults; São Paulo Brazil April 2011

1st winter; Rio Grande do Sul Brazil June 2011.
Now that's what I call a cake-hole!

And finally...

... no idea what this is! Pale American Herring Gull? Connecticut May 2012

-