The grey heron is a tall bird, standing around 90-100 cm (35-39 inches) in height. It has long legs, a long neck, and a dagger-like bill. The plumage of the grey heron is predominantly grey, with lighter and darker shades. The neck is white or greyish-white, while the head has a white patch on the front and a black stripe extending from the eye to the back of the head. During the breeding season, the adults develop long, elegant plumes on their heads, neck, and back.
Grey herons can be found in various habitats, including wetlands, marshes, lakes, rivers, estuaries, and coastal areas. They are adaptable birds and can also be seen in agricultural fields, parks, and gardens. These birds prefer areas with shallow water where they can easily catch fish, amphibians, and other aquatic prey.
Grey herons are known for their patient and stealthy hunting techniques. They often stand motionless at the water's edge, waiting for prey to come within striking distance. Once an opportunity arises, they swiftly strike with their sharp bill to catch fish, frogs, small mammals, and even birds. They have excellent eyesight, which helps them detect prey from a distance.
During the breeding season, grey herons form nesting colonies known as heronries. They build large stick nests in trees, often near water bodies. The nests are usually high off the ground to protect the eggs and chicks from predators. Grey herons typically lay 3-5 pale blue eggs, which are incubated by both parents for about 25-30 days. The chicks hatch and are initially fed regurgitated food by their parents. They fledge and leave the nest after around 50-60 days.
The grey heron is considered a species of least concern by the International Union for Conservation of Nature (IUCN). It has a wide distribution range and a large population size. However, like many other bird species, it faces threats such as habitat loss, pollution, and disturbance at breeding sites. Conservation efforts to protect wetlands and promote sustainable land use practices can benefit grey heron populations.