A Yellow-legged Gull has made itself very scarce at Quidi Vidi Lake this winter. There were a couple sightings in late fall but no confirmed sightings after Christmas. Finally on 19th Feb it was there at the lake at the Virginia River mouth. It was on the ice preening with just a few hundred other gulls.
Attached are a few shots from a distance among other species. Showing the correct shade of gray is near impossible on a computer monitor especially when no two monitors are the same. Yellow-legged Gulls are a beautiful gull in life. All the features are turned up a notch from ordinary gulls including the deep chrome yellow legs, the bright bill, large fire engine red gony spot, silky white head, battle ship gray upper parts.
Two interesting and consistent features of Yellow-legged Gulls that come to St. John's is the wide space between the white tip of P7 and P8 (more evenly spaced on other gulls) and the white tip of P10 extends beyond P9 (P9 shelters tip of P10 in other gulls). Have not seen these features on photos of YLGUs from the Azores which we is the closest source of this species to the Avalon. The dark upper parts and smaller size is typical of Azores and Portuguese YLGUs.
See Lisa de Leon's blog for much close shots of this bird a few minutes after I left. I was already late for work http://retiringwithlisadeleon.blogspot.ca/