There are more than 50 species of seagulls, with a Little Gull weighing as little as 4.2 ounces, and a Great Black-beaked Gull weighing as much as 3.8 pounds. As with their weight, seagulls also range in size from 11.5 i... More »

The CDC (Centers for Disease Control and Prevention) indicates how much a person should weigh varies based on individual factors such as current height and weight. The calculation used to indicate whether a person is ove... More »

www.reference.com Health Medical Ranges & Levels

When determining how much you should weigh for your age, there are a few factors to consider. Some include your height, sex, bone-density and muscle-to-fat ratio. More »

www.reference.com Health Fitness & Exercise

All 40 species of gulls come inland to nest. Some seagulls travel inland just to nest and return to the coast during the winter, but some gulls never visit the sea at all. Birds from the family of gulls are commonly call... More »

Most species of seagull build their nests on the ground, while other species build their nests on elevated areas, such as cliffs or trees. Roofs may also be used for nesting. Seagulls build nests in colonies. Nests are c... More »

North American seagulls do migrate, but the distances of migration vary among species. For example, Franklin's Gulls migrate from Canada to Mexico while Herring Gulls fly from Canada to the northern United States or to c... More »

Owl weight varies among species but most adult owls weigh between 1.5 ounces and 9 pounds. Elf owls, the smallest owls in the world, reach a very short height and weigh much less than the largest owl breed, the Eurasian ... More »