The legs and feet are a … It has a strong direct flight with deep wing beats. Their head is white with a yellow bill. The challenge. However, because of its small population size and limited range, the species should be monitored. For the most part, western gulls are coastal dwellers that concentrate mainly in the Southern California … California Gull (larus californicus) The California Gull adults are roughly 19-21 inches (47-54 cm) in length with a wingspan of up to 51 inches (130 cm). The only gull nesting along most of the Pacific Coast from Washington to Baja, this large species is common at all seasons. The bill and legs are yellow, and it has a red eyering. It will also nest near colonies of California sea lions, scavenging any sea lion pups that die of natural causes. The western gull, a big bulky bird, is a bold, skillful hunter and scavenger. An opportunist, it often nests around colonies of other seabirds, where it can steal unguarded eggs or chicks. Plants like cacti are covered with a waxy cuticle to protect then from drying out. It feeds on worms, mice, other birds and their eggs, and garbage. California's ocean ecosystems. The sexes are similar, but the males are usually larger than females, with a larger bill, head and tarsi. Western gulls are the most abundant breeding seabird in the Channel Islands National Park, with a population estimated at more than 15,000. Adaptations for extreme conditions is important for survival here. What are the adaptations for a GULL? What we do. The western gull has a small population, with limited distribution along the West Coast. Even though gulls prey on other birds, they don't deserve their reputation of being a nuisance or an undesirable pest. Story. California's grasslands are not like the prairies of the central states. California Gull: This is a medium-sized gull with a white head and underparts, gray wings and black wing tips. Western Gull rates a 13 out of 20 on the Continental Concern Score, and is not listed on the 2016 State of North America's Birds' Watch List. The gull's back and wings are dark gray. The Pacific oyster Crassostrea gigas belongs to one of the most species-rich but genomically poorly explored phyla, the Mollusca. We need you to answer this question! The neck and under parts are also white.