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