Ring-Billed Gull (Larus delawarensis)

The Ring-Billed Gull is a medium sized gull (Family: Laridae, Order:Charandriiformes) found near water, quite often forming large flocks. The gulls are found near human residence and are known for its adaptations to man-induced habitat changes. As the name suggests, a black band encircles the bill of the Ring-Billed Gull. It has a white body and gray wings.

The gulls have well-developed wings and they are good fliers. The black portions of the wings form a black "tail" when folded (the real tail feathers are white).

Lakeport, CA
2008-02-07

The eye rims of the adult gulls are orange-red whileas the juvenile and the first-year gulls have black eyes and eye rims.

Other Laridae species:

Acorn Woodpecker• American Coot• American Crow• American Robin• American White Ibis• American White Pelican• Anhinga• Audubon's Warbler• Black Phoebe• Black-Capped Chickadee• Blue Jay• Boat-Tailed Grackle• Brewer's Blackbird• Brown Pelican• Bufflehead• Canada Goose• Chestnut-Backed Chickadee• Collared-Dove• Common Gallinule• Common Goldeneye• Common Grackle• Double-Crested Cormorant• Downy Woodpecker• European Starling• Fox Sparrow• Glossy Ibis• Golden-Crowned Sparrow• Graylag Goose• Great Blue Heron• Great Egret• Herring Gull• House Sparrow• Killdeer• Least Bittern• Least Sandpiper• Lesser Goldfinch• Limpkin• Lincoln's Sparrow• Mallard• Mourning Dove• Northern Cardinal• Northern Mockingbird• Oak Titmouse• Osprey• Palm Warbler• Pied-Billed Grebe• Purple Finch• Red-Bellied Woodpecker• Red-Breasted Nuthatch• Red-Winged Blackbird• Ring-Billed Gull• Ringed Plover• Ruby-Crowned Kinglet• Sanderling• Sandhill Crane• Semipalmated Sandpiper• Sharp-Shinned Hawk• Short-Tailed Hawk• Snowy Egret• Song Sparrow• Spotted Towhee• Steller's Jay• Tricolored Heron• Trumpeter Swan• Tufted Titmouse• Turkey Vulture• Western Grebe• Western Gull• Western Meadowlark• Western Scrub Jay• *Western Swamphen• White-Breasted Nuthatch• White-Crowned Sparrow• Wild Turkey• Willet• Wood Stork