6-10-2024 GLIN, LIMERICK - GREY HERON (Ardea cinerea)

The plumage of the Grey heron is largely ashy-grey above, and greyish-white below with some black on the flanks. Adults have a head and neck white with a broad black supercilium that terminates in the slender, dangling crest, and bluish-black streaks on the front of the neck. The scapular feathers are elongated and the feathers at the base of the neck are also somewhat elongated. Immature birds lack the dark stripe on the head and are generally duller in appearance than adults, with a grey head and neck, and a small, dark grey crest. The pinkish-yellow beak is long, straight, and powerful, and is brighter in color in breeding adults. The iris is yellow and the legs are brown and very long.

Grey herons are social birds; they may feed alone or in groups and at night they roost in trees or on cliffs and tend to be gregarious. During the breeding season, they nest in big colonies. Grey herons usually hunt around dawn and dusk but they may also be active at other times of the day. They often perch in trees, but spend much time on the ground, striding about or standing still for long periods with an upright stance, often on a single leg. The main call of Grey herons is a loud croaking "fraaank", but a variety of guttural and raucous noises is heard at the breeding colony. A loud, harsh "schaah" is used by the male in driving other birds from the vicinity of the nest, and a soft "gogogo" expresses anxiety, as when a predator is nearby or a human walks past the colony. The chicks utter loud chattering or ticking noises.