25/01/2010
This gull was seen at Nam Sang Wai this morning. It has a broad dark band at tail but it seems not a Black-tailed Gull as its bill is dark instead of yellow and its neck is not short. Though its forehead looks like a Slender-billed Gull, yet its iris is dark and not white. It has a flat/long forehead and white eye lids as a Pallas's Gull, but its bill is not yellow nor big.
Please advise the ID of this gull.
Sorry for the poorly captured photos.