How seagulls reproduce

Seagulls nest in groups on the ground or on rocky beaches along coasts, islands, rivers;

nest in inland freshwater or saltwater lakes and swamps, and also nest at the seaside On a small island;

The nest is very simple, consisting of seaweed, dead grass, twigs, feathers and other objects piled up into a shallow plate shape, sometimes with a small amount of reeds.

1. Seagull (scientific name: Laruscanus) is a medium-sized gull. The body length is 38-44 cm, the wingspan is 106-125 cm, the weight is 300-500 grams, and the life span is 24 years. The legs and thin beak without spot rings are green and yellow, the tail is white, the primary flight feathers are white at the tips, and have large white wing mirrors. In winter, there are scattered brown lines on the head and neck, and sometimes there is black at the tip of the bill. The seagull has a muscular and attractive figure. Like it, the feathers on the lower part of its body are as crystal white as snow. Seagulls are migratory birds. They are distributed from Europe, Asia to Alaska and western North America. They are seen in the northeastern provinces of China during migration; they overwinter in the entire coastal areas including Hainan Island and Taiwan; they are also seen in Most inland lakes and rivers in East and South China;

2. Morphological characteristics: The winter plumage of adult seagulls is similar to the summer plumage, except that the head, side of the head, pillow and back of the neck have light brown spots. Spots and spots are sometimes arranged in vertical stripes on the occipital part and horizontal stripes on the back neck; young birds, the upper body is roughly white with light brown horizontal stripes, the upper tail is white with brown horizontal spots, and the tail is gray Brown, base white, primary flight feathers dark brown, other flight feathers brown with pale white edges, immature bird tail feathers white with broad black secondary spots, secondary and tertiary flight feathers light gray with brown patches, The iris is yellow, the beak, feet and toes are light green-yellow, and the beak is pink or light brown. They are similar to adult birds in winter, with black sub-terminal spots and flesh-colored feet;

3. Distribution range, traveling birds , Afghanistan, Bahrain, Bhutan, Gambia, India, Libya, Liechtenstein, Malta, Mauritania, Morocco, Myanmar, Nepal, Oman, Pakistan, Saint-Pierre and Miquelon, Saudi Arabia, Senegal, United Arab Emirates; Drifting Bird, Palau , Taiwan Province of China; distributed in China, traveling through the Northeast region when migrating, and overwintering in vast areas of the country such as North China, Central China, East China, South China, and Southwest China;

4. Living habits, seagulls feed on seaside insects, They feed on mollusks, crustaceans, and worms and grubs in cultivated fields; they also prey on small fish on the shore and pick up leftovers discarded on the shore and on boats. In addition to eating fish, shrimp, crabs, and shells, seagulls also like to pick up food. They eat leftovers discarded by people on boats, so seagulls are also nicknamed "harbor cleaners". They are almost frequent visitors around ports, docks, bays and ships; seagulls are also "forecasters" of maritime navigation safety; if seagulls fly close to the sea, then The weather ahead will be fine; if they linger along the coast, the weather will gradually turn bad. If seagulls leave the water, fly high, and fly in groups from far away from the sea to the seaside, or if groups of seagulls gather on the beach or in the crevices of rocks, it indicates that a storm is coming.