On an island not far from the mainland, a young father seagull is anxiously guarding his new born gulls by the nest, awaiting the return of the mother seagull. The mother seagull has given her baby seagulls everything she has, but the baby gulls are still hungry. The father seagull flies away in search of more food. The main diet of black-tailed gulls consists of pelagic fish, molluscs and aquatic insects in coastal wetlands and estuaries. However, with overfishing and pollution of the marine environment, seagulls have fewer and fewer fish to catch.