Herring Gull and RIng-billed Gulls
Stevens Camp, Lake Champlain, North Hero, Vermont
So far I have found four species of gull on Lake Champlain around North Hero Island: Herring, Ring-billed, Great Black-backed, and Bonaparte's. Unfortunately I only have photos of two of the species so far.
The picture above gives a clear comparison between the Herring and Ring-billed. At 40 oz. and a 58" wingspan, the Herring gull is a substantial creature compared to the Ring-billed with its 18 oz. body and 48" wingspan.
The Bonaparte's gull is a delicate, tern-like bird weighing at a dainty 7 oz., or about the weight of a Sandwich or Gull-billed tern. The Great Black-backed Gull is the local bruiser, weighing in at nearly 60 oz., or 50% more than the Herring. The Black-backed is our largest North American gull.