Ring billed Gull v Common Gull -Ennis

While doing the xmas shopping in Ennis I caught up with the 3cy Ring billed Gull at the post office field.

I thought I had two , but at a closer look the other is a 3cy Common Gull (in disguise).☯

Ring billed Gull

Ring billed Gull 

Common Gull

Ring billed Gull

Common Gull + Ring billed Gull