Learn 100 Common Valley Birds is a photo blog series highlighting the 100 most common Valley bird species.
Post #30 in the Learn 100 Common Valley Birds series. (Species 52/100)
Ring-billed Gull #52
The Ring-billed Gull (Larus delawarensis) is a medium-sized gull. Its head, neck and underparts are white; the relatively short bill is yellow with a dark ring; the back and wings are silver gray; and the legs are yellow. The eyes are yellow with red rims. The basic plumage (non-breeding/winter) adult’s head has a mottled look to it.
The Ring-billed Gull takes three years to reach full adult plumage. The first two year’s plumages have a very mottled, almost dirty look to them and their bills have a black tip rather than a black ring.
The Ring-billed Gull is most prevalent between July and April at almost any areas with water and/or human activity.
Previous posts from the Learn 100 Common Valley Birds series:
Reflections of the Natural World 