Jawan CintaDendrocygna bicolor) galibi yana zaune ne a canjin yanayin zafi a Amurka, Afirka da Kudancin Asia. A cikin zabi na biotopes, wadannan ducks suna nuna banbancin filastik, suna zaban mafi yawan wuraren tafkuna na ruwa da ke kan layin: tabkuna, koguna, ƙananan bushewa, ragunan ruwa, malalewa. Mafi sau da yawa, duwatsar mai jan baki suna zama a wuraren da ciyayi ke da ciyawa sosai, ana samun su sau da yawa a filayen shinkafa ambaliya.
Kiwo
Gida daga cikin waɗannan ducks ɗin shine dandamali mai ciyawa tare da tire, an rufe shi da shinge na ciyayi da ke fitowa daga ruwa - reeds, cattail, reeds, shinkafa, furannin fure. A wannan yanayin, mafi yawa gida yana yawan wadatarwa, ba'a kafa shi zuwa gindi ba. Mahimmanci ba sau da yawa, yakan zaɓi ramin itace waɗanda ke halayyar wasu nau'ikan duck. Cikakken shimfiɗa yawanci yana ƙunshe da ƙwai 12-14, shiryawa yana kimanin kwanaki 24-26. Dukkan tsuntsayen biyu suna yin incubate daidai, wanda ba sabon abu bane a tsakanin ducks. Kajin irin nau'in kajin na barin gida nan da nan bayan haihuwa kuma suka bi iyayensu, suna ɓoyewa daga mafarautan a cikin ciyawa mai yawa. Namiji da mace suna shugabantar da ɗan itacen tare, har sai kaji na kan reshe (wannan yana faruwa kimanin shekaru 63-65).
Abinci mai gina jiki
Ducks swistling ciyar da da kogin ducks: tsuntsu yana tace saman ruwa, yana nutsar da kai a ciki ko ya rufe rabin jikin mutum. Bugu da kari, suna nutsewa da kyau, suna raye a karkashin ruwa har zuwa 15 seconds. Babban sashin abinci na danshi mai kunshe yana dauke da kayan shuka, yana cin tsaba da anda fruitsan itace na ruwa da tsire-tsire, kamar na tsaunin dutse da na zaki, na son ciyar da filayen shinkafa ambaliyar ruwa, inda galibi suka fi mayar da hankali a manyan rukuni. Ducks kuma suna ciyar da kwararan fitila da rhizomes, harbe, fure na reeds, Timothy, da sauran tsire-tsire.
Bayanin
Dankin-sized itace duck: duka tsawon 45-53 cm, maza yayi awo 621-75 g, mace tayi nauyi 631-739 g. Physique - tsayi, dogo mai tsayi da kuma dogon kafafu - yayi kama da Goose maimakon na duke na hali. Wani fasalin halayyar da ke bambanta duk ducks na itace, gami da ja, shine fuka-fukansa da zagaye, saboda jirgin da yake jujjuya da zurfi, kamar na ibises. Hakanan an maimaita makamancin wannan tare da ƙarshen iska a cikin hanji mai wuya da ƙafafun da ke gefen gefen wutsiya. Kamar sauran nau'ikan ducks, an sanya murhun jan-gashi a cikin fakitoci, amma, ba kamar wasu ba, ba ya samar da tsari mai jituwa a cikin jirgin. Shugaban yana da siffar pear, wutsiya gajere.
Kamar yadda sunan yake nunawa, ana yin mamaye zuban ne a cikin jan, ko kuma launin ruwan kasa-ja, wanda yake kan kai, wuya, kirji, ciki da kuma bangarorin. Babu wani abin kwaikwaya a saman jan akan jerin sassan jikin mutum, banda maɗaukakin wucin wucin gadi, wanda akwai wasu launuka masu duhu. Abon da ya fi tsayi a saman ɓangarorin ɓangarorin da maɓallin ƙwaƙwalwa ana fentin cream-fari tare da ƙarshen launin ruwan kasa. Baya da flywheels launin ruwan kasa mai launin shuɗi tare da tsarin tan. Lissafin baƙar fata ne, ƙafafu suna da launin toka-mai haske. Maza manya da mata kusan ba sa banbanta da juna, banda cewa ƙarshen zai ɗan ƙarami kuma fentin cikin sautunan paler dan kadan. Tsuntsayen matasa ba su da bambance-bambance na waje tare da manya.
Yankin
Yankin ya ƙunshi sassa da dama da aka gutsuttsura a cikin Tsoho da Sabon Duniya. A Arewacin Amurka, yana zaune a jihohin Kudancin Amurka - Florida, Texas da Louisiana, kuma a Mexico zuwa kudu zuwa jihohin Oaxaca da Tabasco. Har kwanan nan, an yi biris a cikin Mafi Girma Antilles. A Kudancin Amurka, akwai wurare biyu da ke cikin kewayon kewayon: ɗayan yana a arewacin ɓangaren daga Colombia daga gabas zuwa Guyana, ɗayan a tsakiyar daga Brazil zuwa kudu zuwa lardin Tucuman na Argentina da lardin Buenos Aires na Brazil. Yankin da aka rarraba a Afirka yana kudu da hamadar Sahara: shimfidar shugana daga Senegal gabas zuwa Habasha, kudu zuwa tafkin Ngtswana Ngami da lardin KwaZulu-Natal na Afirka ta kudu. Bugu da kari, duck ya zama ruwan dare a Madagascar. A ƙarshe, yankin Asiya ya mamaye India da Myanmar.
An yi la'akari da mafi yawan nau'in jinsin. A Afirka, ƙaura na yau da kullun na faruwa ne saboda bushewar gawawwakin ruwa ko kuma karancin kayan abinci. Dangane da gaskiyar cewa duck yana da ikon tattarawa wuri guda a lokaci daya kuma cikin ɗimbin yawa, an faɗi cewa yana da matuƙar hannu da shirye don ƙaura zuwa sabon yankuna. Hakanan ana goyan bayan wannan ka'ida ta rashin bambancin yanki tare da babban yanki mai tsagewa. An san fasinjojin jirgin sama a cikin Kanada, arewa maso gabashin Amurka, Hawaii, Maroko, Spain, kudancin Faransa da Nepal. Tsuntsaye a Indiya wani lokacin suna tashi zuwa Sri Lanka.
Habitat
A cikin zabi na halittun dabbobi, yana nuna banbancin filastik, yana zabar mafi yawan wuraren tafkuna na ruwa da ke kan layin: tabkuna, koguna, ƙanana, bushewa koguna, rafukan ruwa, malalewa. Mafi sau da yawa, yana zaune a wuraren da ciyawar ciyawar ke girma. Sau da yawa, ana iya samun duck a filayen shinkafa ambaliya.