No. If you compare the bill on your bird with the bill of the bird in the original photos of Glaucous Gull, you'll see that they are quite different. Glaucous has a mainly pale bill with a dark tip - roughly 70% pale, 30% dark with a clear demarcation between the colours.
The bird in your photo has a mainly dark bil with some pale coloration bleeding into the dark at the base of the bill.
I'm not a gull expert. Your bird is probably a 1st-winter Heuglin's Gull, the commonest large gull that winters in Hong Kong.
David
www.hknaturewalks.com
