parent_taxon blue-winged goose
Waterfowl are certain wildfowl of the order ___MASK89___ , especially members of the family ___MASK50___ , which includes ducks , geese , and swans . Some definitions of the term ' waterfowl ' include the saltwater shorebirds or waders , gulls , pelicans , and herons , as well as seabirds such as the albatross , but ' fowl ' especially refers to birds used by humans for game . They have historically been an important food source , and continue to be hunted as game , or raised as poultry for meat and eggs and are sometimes kept as pets . Gulls , often referred to as seagulls , are seabirds of the family ___MASK38___ in the suborder Lari . They are most closely related to the terns ( family Sternidae ) and only distantly related to auks , skimmers , and more distantly to the waders . Until the 21st century , most gulls were placed in the genus " ___MASK94___ ", but this arrangement is now known to be polyphyletic , leading to the resurrection of several genera . An older name for gulls is mew , cognate with German " Möwe ", Danish " måge ", Dutch " meeuw ", and French " mouette "; this term can still be found in certain regional dialects . The Horn of Africa (, " yäafrika qänd ", " al - qarn al -' afrq ") ( shortened to HOA ) is a peninsula in Northeast Africa . It juts hundreds of kilometers into the Arabian Sea and lies along the southern side of the Gulf of Aden . The ___MASK76___ is the easternmost projection of the African continent . The Horn of Africa denotes the region containing the countries of Djibouti , Eritrea , Ethiopia , and Somalia . Duck is the common name for a large number of species in the waterfowl family ___MASK50___ , which also includes swans and geese . The ducks are divided among several subfamilies in the family ___MASK50___ ; they do not represent a monophyletic group ( the group of all descendants of a single common ancestral species ) but a form taxon , since swans and geese are not considered ducks . Ducks are mostly aquatic birds , mostly smaller than the swans and geese , and may be found in both fresh water and sea water . Kenya , officially the Republic of Kenya , is a country in Africa and a founding member of the East African Community ( EAC ). Its capital and largest city is Nairobi . Kenya ' s territory lies on the equator and overlies the East African Rift covering a diverse and expansive terrain that extends roughly from Lake ___MASK64___ to Lake Turkana ( formerly called Lake Rudolf ) and further south - east to the Indian Ocean . It is bordered by Tanzania to the south and southwest , Uganda to the west , South Sudan to the north - west , Ethiopia to the north and Somalia to the north - east . Kenya covers , and had a population of approximately 45 million people in July 2014 . Poultry are domesticated birds kept by humans for the eggs they produce , their meat , their feathers , or sometimes as pets . These birds are most typically members of the superorder ___MASK56___ ( fowl ), especially the order ___MASK27___ ( which includes chickens , quails and turkeys ) and the family ___MASK50___ , in order Anseriformes , commonly known as " waterfowl " and including domestic ducks and domestic geese . Poultry also includes other birds that are killed for their meat , such as the young of pigeons ( known as squabs ) but does not include similar wild birds hunted for sport or food and known as game . The word " poultry " comes from the French / Norman word " poule ", itself derived from the Latin word " pullus ", which means small animal . Pelicans are a genus of large water birds that makes up the family ___MASK23___ . They are characterised by a long beak and a large throat pouch used for catching prey and draining water from the scooped up contents before swallowing . They have predominantly pale plumage , the exceptions being the brown and Peruvian pelicans . The bills , pouches and bare facial skin of all species become brightly coloured before the breeding season . The eight living pelican species have a patchy global distribution , ranging latitudinally from the tropics to the temperate zone , though they are absent from interior South America as well as from polar regions and the open ocean . The ___MASK50___ are the biological family of birds that includes ducks , geese , and swans . The family has a cosmopolitan distribution , occurring on all the world ' s continents . These birds are adapted for swimming , floating on the water surface , and in some cases diving in at least shallow water . The family contains around 146 species in 40 genera . ( The magpie goose is no longer considered to be part of the ___MASK50___ , but is placed in its own family Anseranatidae .) The blue - winged goose ( Cyanochen cyanoptera ) is a waterfowl species which is endemic to Ethiopia . It is the only member of the genus Cyanochen . The herons are the long - legged freshwater and coastal birds in the family ___MASK98___ , with 64 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 ___MASK98___ . Egrets are not a biologically distinct group from the herons , and tend to be named differently because they are mainly white or have decorative plumes . Although egrets have the same build as herons , they tend to be smaller . Herons , by evolutionary adaptation , have long beaks . Djibouti (; ', , ), officially the Republic of Djibouti , is a country located in the Horn of Africa . It is bordered by Eritrea in the north , Ethiopia in the west and south , and Somalia in the southeast . The remainder of the border is formed by the Red Sea and the Gulf of Aden at the east . Djibouti occupies a total ___MASK76___ of just . Swans are birds of the family ___MASK50___ within the genus Cygnus . The swans ' close relatives include the geese and ducks . Swans are grouped with the closely related geese in the subfamily Anserinae where they form the tribe Cygnini . Sometimes , they are considered a distinct subfamily , Cygninae . There are six or seven species of swan in the genus " Cygnus "; in addition there is another species known as the coscoroba swan , although this species is no longer considered one of the true swans . Swans usually mate for life , though " divorce " does sometimes occur , particularly following nesting failure , and if a mate dies , the remaining swan will take up with another . The number of eggs in each clutch ranges from three to eight . Ethiopia ('), officially known as the Federal Democratic Republic of Ethiopia "' (     , " yetiyoya Fdralaw Dmokirasyaw Rpebilk " ), is a country located in the Horn of Africa . It shares borders with Eritrea to the north and northeast , Djibouti and Somalia to the east , Sudan and South Sudan to the west , and Kenya to the south . With nearly 100 million inhabitants , Ethiopia is the most populous landlocked country in the world , as well as the second - most populous nation on the African continent after Nigeria . It occupies a total ___MASK76___ of , and its capital and largest city is Addis Ababa . ___MASK89___ is an order of birds that comprises about 180 living species in three families : Anhimidae ( the screamers ), Anseranatidae ( the magpie goose ), and ___MASK50___ , the largest family , which includes over 170 species of waterfowl , among them the ducks , geese , and swans . In fact , these living species are all included in ___MASK50___ except for the three screamers and the magpie goose . All species in the order are highly adapted for an aquatic existence at the water surface . The males , except for the screamers , also have a penis , a trait that has disappeared in Neoaves . All are web - footed for efficient swimming ( although some have subsequently become mainly terrestrial ). Waders are birds commonly found along shorelines and mudflats that wade in order to forage for food ( such as ___MASK11___ or crustaceans ) in the mud or sand . They are called shorebirds in North America ( where " wader " is used to refer to long - legged wading birds such as storks and herons ). Waders are members of the order Charadriiformes , which includes gulls , auks and their allies . Albatrosses , of the biological family Diomedeidae , are large seabirds allied to the procellariids , storm petrels and diving petrels in the order ___MASK29___ ( the tubenoses ). They range widely in the Southern Ocean and the North Pacific . They are absent from the North Atlantic , although fossil remains show they once occurred there and occasional vagrants are found . Albatrosses are among the largest of flying birds , and the great albatrosses ( genus " Diomedea ") have the largest wingspans of any extant birds , reaching up to . The albatrosses are usually regarded as falling into four genera , but there is disagreement over the number of species . Fowl are birds belonging to one of two biological orders , namely the gamefowl or landfowl ( ___MASK27___ ) and the waterfowl ( Anseriformes ). Studies of anatomical and molecular similarities suggest these two groups are close evolutionary relatives ; together , they form the fowl clade which is scientifically known as ___MASK56___ ( initially termed Galloanseri ). This clade is also supported by morphological and DNA sequence data as well as retrotransposon presence / absence data . Eritrea ( or ), officially the State of Eritrea , is a country in the Horn of Africa . With its capital at Asmara , it is bordered by Sudan in the west , Ethiopia in the south , and Djibouti in the southeast . The northeastern and eastern parts of Eritrea have an extensive coastline along the Red Sea . The nation has a total ___MASK76___ of approximately , and includes the Dahlak Archipelago and several of the Hanish Islands . Its toponym " Eritrea " is based on the Greek name for the Red Sea , which was first adopted for Italian Eritrea in 1890 .