For gull enthusiasts,
There is yet another photo of an interesting Kelp Gull on Eremaea NSW: While its wing looks like that of an adult, the head looks like that of a 2nd winter or an extreme 3rd winter. Possibly this a 4th winter or adult bird with retarded head plumage?
Cheers,
Nikolas
Forgot to mention the bill, which also looks like that of a 2nd winter or an extreme 3rd winter bird…