Great Black-backed Gull NO
On RGV trip on Monday I found this interesting gull at the Port Aransas jetty.
I called it a Great Black Backed Gull in the field based on thick pink legs, big bill, large size (a good bit larger than Herrings present), white head, thick neck and patterned coverts.
Posting pix to gull FB pages, there has been some debate, but consensus seems to be Herring Gull or possibly a hybrid Herring/GBBG.















