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5

Black-crowned Night Heron (Nycticorax nycticorax) Alternate name(s): "Night Heron" German name(s): "Nachtreiher" Size: 58-65 cm; wing span 1.05-1.15 m Weight: 380-900 g

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Description     Classification     Distribution     Sightings     Photos     Breeding     Nest     Eggs     Behaviour     Food     Call/s

Physical description Click here for a physical description Black-crowned Night Herons are small, but long-legged herons. They have a creamy frons, creamy supercilia and throat, while the rest of the front is light-grey. The crown is blue-grey. The light-grey colour of their neck band extends to the nuchal plumes at the nape of the neck. The mantle is blue-grey, while the outer wing coverts and the flight feathers are grey. Their irises are brown. The strong bill is dark-grey, with yellowish-grey lores. The legs and feet are yellow to greyish-yellow, during courtship often pale-red. Juvenile Black-crowned Night Herons have more cryptic plumage than adults, with duller colours. Their front is light grey-brown, with some streaking on the sides of the neck. The crown and mantle are grey-brown, rather than blue-grey, and the wing feathers are grey-brown with a slightly scalloped pattern.

Taxonomy, classification See Black-crowned Night Heron at Wikipedia .

Range, habitat, finding this species Click here for information on habitat and range The overall distribution of this species can be assessed based on sighting reports submitted by birdwatchers to the ebird.org website. The global distribution of the Black-crowned Night Heron is available HERE . There are four different races of Black-crowned Night Herons, which are a global, partly migratory species. They are found on all continents, except Australia (where they are replaced by the similar Rufous [Nankeen] Night Heron) and Antarctica. The northern populations are migratory, while the southern populations, even in cold climates, are sedentary. Nominate race "nycticorax" is found permanently in most of Africa, except the Sahara desert and much of south-western Africa, along the north-western African coastal fringe, the Nile river catchment and on into the Sinai and via the Middle East to southern Asia Minor. There is a second permanent population on the Indian subcontinent and almost all of South-east Asia, up to southern China, and in southern-most South Korea and Japan. On some South-east Asian islands there are wintering populations only. During the northern summers these populations extend their breeding range into parts of southern to central Europe, temperate central Asia and into much of eastern China, all of the Korean peninsula and Japan. Surprisingly, there is a wintering population on Hokkaido, taking advantage of hot volcanic waters. The other three races are found in the Americas (for details see, e.g., Wikipedia ). In Europe Black-crowned Night Herons, race "nycticorax", are found only during the summers, as breeding migrants. Their distribution is patchy (for details see, e.g., Wikipedia ). They are found in parts of Iberia, southern and central France, the western half of Belgium and the border region to northern France, the lowlands of the river Po in northern Italy, in southern Sardinia, in the border region of Albania and Montenegro, in most of Greece (except the Pelopponesus) and along the northern coastline of the Black Sea and around most of the Caspian Sea. There is a separate inland population in the upper Danube river valley, in the border region between Germany, Austria and the Czech Republic. Black-crowned Night Herons can be found in both freshwater habitats such as lakes, rivers, ponds, marshes and other types of wetlands, and saline water, e.g. along oceanic coastlines.

Sightings Click here for sighting information Race "nycticorax" D. Wilczynska reports spotting a Black-crowned Night Heron, race "nycticorax", near Santa Giusta, Oristano, Sardinia, Italy, in June 2016. All sighting and photographic information presented on this page has kindly been contributed by D. Wilczynska.

Photos

Race "nycticorax"

ADULT

Lateral view of a Black-crowned Night Heron (photo courtesy of D. Wilczynska)
[Near Oristano, western Sardinia, Italy, June 2016]

Food, Diet

All egrets and herons prey on aquatic creatures in fresh water or estuaries (fish, frogs, snakes or crustaceans).

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