The great blue heron (Ardea herodias) is a large wading bird in the heron family Ardeidae, common near the shores of open water and in wetlands over most of North America and Central America.
Great blue herons rarely venture far from bodies of water, but are occasionally seen flying over upland areas. They usually nest in trees or bushes near water's edge, often on islands, which minimizes the potential for predation or partially isolated spots.
The primary food for the great blue heron is fish. They can prey on various sizes of fish from small fingerlings to large adult fish, measuring 60 cm (24 in) in length and weighing around 900 g (2.0 lb), small to medium-sized fish around 10-20 cm (3.9-7.9 in) are usually preferred.
Besides fish, it is also known to feed on a wide range of prey opportunistically. Amphibians such as leopard frogs and American bullfrogs are readily taken, as well as reptiles such as small turtles and snakes. They also prey on small mammals including shrews, rats, ground squirrels, and moles.
Great blue herons build a bulky stick nest. The female lays 3 to 6 pale blue eggs. Both parents feed the young at the nest by regurgitating food. One brood is raised each year.
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23 фев 2023
