Okanj | |
---|---|
Окањ (Serbian) | |
Location | Vojvodina Province, Serbia |
Coordinates | 45°28′20″N20°18′17″E / 45.472290°N 20.304794°E [1] |
Type | Oxbow lake |
Part of | Tisa River |
Max. length | 4.5 kilometres (2.8 mi) |
Max. width | 500 metres (1,600 ft) |
Surface area | 200 hectares (490 acres) |
Okanj (Serbian Окањ) is a saline oxbow lake situated near the village of Elemir in the Zrenjanin commune, western Banat, Vojvodina Province, Serbia. It was formed from a meander of the Tisa River (UTM: DR43) and is now about 4.5 kilometres (2.8 mi) from the river's left bank. [2]
The whole depression occupies 200 hectares and contains brackish water. In some parts the edges are surrounded by reeds, and there are also extreme saline edges, with short halophylous vegetation. [3]
Herons traditionally breed here and a mixed colony with spoonbills was formed in 1998. In that year there were 47 pairs of great egret (Egretta alba), 33 pairs of grey heron (Ardea cinerea), 27 pairs of purple heron (Ardea purpurea) and 60 pairs of Eurasian spoonbill (Platalea leucorodia). [3]
The great blue heron is a large wading bird in the heron family Ardeidae, common near the shores of open water and in wetlands over most of North and Central America, as well as far northwestern South America, the Caribbean and the Galápagos Islands. It is occasionally found in the Azores and is a rare vagrant to Europe. An all-white population found in south Florida and the Florida Keys is known as the great white heron. Debate exists about whether this represents a white color morph of the great blue heron, a subspecies of it, or an entirely separate species.
Herons are long-legged, long-necked, freshwater and coastal birds in the family Ardeidae, with 72 recognised species, some of which are referred to as egrets or bitterns rather than herons. Members of the genera Botaurus and Ixobrychus are referred to as bitterns, and, together with the zigzag heron, or zigzag bittern, in the monotypic genus Zebrilus, form a monophyletic group within the Ardeidae. Egrets do not form a biologically distinct group from herons, and tend to be named differently because they are mainly white or have decorative plumes in breeding plumage. Herons, by evolutionary adaptation, have long beaks.
The grey heron is a long-legged wading bird of the heron family, Ardeidae, native throughout temperate Europe and Asia, and also parts of Africa. It is resident in much of its range, but some populations from the more northern parts migrate southwards in autumn. A bird of wetland areas, it can be seen around lakes, rivers, ponds, marshes and on the sea coast. It feeds mostly on aquatic creatures which it catches after standing stationary beside or in the water, or stalking its prey through the shallows.
The purple heron is a wide-ranging heron species. It breeds in Africa, central and southern Europe, and southern and eastern Palearctic. The Western Palearctic populations migrate between breeding and wintering habitats whereas the African and tropical-Asian populations are primarily sedentary, except for occasional dispersive movements.
The great egret (Ardea alba), also known as the common egret, large egret, or great white egret or great white heron, is a large, widely distributed egret. The four subspecies are found in Asia, Africa, the Americas, and southern Europe. Recently it is also spreading to more northern areas of Europe. Distributed across most of the tropical and warmer temperate regions of the world, it builds tree nests in colonies close to water.
The black-crowned night-heron, or black-capped night-heron, commonly shortened to just night-heron in Eurasia, is a medium-sized heron found throughout a large part of the world, including parts of Europe, Asia, and North and South America. In Australasia it is replaced by the closely related nankeen night-heron, with which it has hybridized in the area of contact.
The Eurasian spoonbill, or common spoonbill, is a wading bird of the ibis and spoonbill family Threskiornithidae. The genus name Platalea is from Latin and means "broad", referring to the distinctive shape of the bill, and leucorodia is from Ancient Greek leukerodios "spoonbill", itself derived from leukos, "white" and erodios "heron". In England it was traditionally known as the "shovelard", a name later used for the Northern Shoveller.
The black-headed heron is a wading bird of the heron family Ardeidae, common throughout much of sub-Saharan Africa and Madagascar. It is mainly resident, but some west African birds move further north in the rainy season.
Florida Bay is the bay located between the southern end of the Florida mainland and the Florida Keys in the United States. It is a large, shallow estuary that while connected to the Gulf of Mexico, has limited exchange of water due to various shallow mudbanks covered with seagrass. The banks separate the bay into basins, each with its own unique physical characteristics.
Lake Uluabat is the name of a freshwater lake in the vicinity of Bursa, Turkey. It is a large lake, covering an area of between 135 and 160 km2 depending on the water level, but very shallow, being only 3 m deep at its deepest point. The lake contains eight islands and one other that is sometimes an island and sometimes a peninsula. The largest island is known as Halilbey Island. In the southwest the lake is fed by the Mustafakemalpaşa River, which has formed a silty delta. Water leaves the lake by way of the Ulubat stream, flowing to the west, and reaches the Sea of Marmara via the Susurluk River.
Ōkārito Lagoon is a coastal lagoon on the West Coast of New Zealand's South Island. It is located 130 kilometres (81 mi) south of Hokitika, and covers an area of about 3,240 hectares (12.5 sq mi), making it the largest unmodified coastal wetland in New Zealand. It preserves a sequence of vegetation types from mature rimu forest through mānuka scrub to brackish water that has been lost in much of the rest of the West Coast. The settlement of Ōkārito is at the southern end of the lagoon.
Ardea is a genus of herons. These herons are generally large in size, typically 80–100 cm or more in length.
Egretta is a genus of medium-sized herons, mostly breeding in warmer climates.
The great-billed heron is a wading bird of the heron family, resident from southeast Asia to Papua New Guinea and Australia.
The rufous-bellied heron is a species of heron in the genus Ardeola, the pond herons, of the family Ardeidae. It is found in southern Africa.
The eastern great egret, a white heron in the genus Ardea, is usually considered a subspecies of the great egret. In New Zealand it is known as the white heron or by its Māori name kōtuku. The subspecies was first described by British ornithologist John Edward Gray in 1831.
The Estero River is a 6.4-mile-long (10.3 km) waterway in south Lee County, Florida, United States, near the village of Estero. It flows from east to west, emptying into Estero Bay, an inlet of the Gulf of Mexico.
The Diep River Fynbos Corridor is a nature reserve located in the Blaauwberg region of Cape Town, South Africa. It forms part of the larger Table Bay Nature Reserve, which was established in June 2012.
The Waitangiroto Nature Reserve is a protected area of 1,534 ha near Whataroa, in the West Coast of New Zealand. The reserve consists of lowland kahikatea swamp forest either side of the Waitangiroto River. It is notable as the site of the only breeding colony of kōtuku or white heron in New Zealand, comprising 100–120 birds. Royal spoonbills and little shags also breed alongside the kōtuku. The breeding colony is a visitor attraction during the breeding season, but access to the entire nature reserve is by permit only. Visitors can view the birds from a hide across the Waitangiroto River. Tours of the reserve operate from a base in Whataroa.