Grearamin grebe

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Mafi ƙanƙancin tsuntsayen da ke girke-girke sun fi 'yan uwansu zagaye. Wannan sifar ta samo asali ne sakamakon rashin jela da kuma al'adar yin fuka-fukai a bayan jiki.

Halittar Haihuwar Halitta

Toananan ɗakunan toadstools suna nutsewa cikin gwaninta. Suna zamewa a karkashin ruwa ba tare da keta mutuncin farfajiya ko nutsuwa da ƙarfi ba, ƙirƙirar fesawa da ƙafafun filafili. Nutsewar ya ƙare har zuwa rabin minti. Idan aka firgita, karamar shafawar zata dulmuya cikin ruwan, kai kawai ya rage a saman ruwan.

Fasali na halayen jima'i

Lokaci zuwa lokaci, maza suna nuna kishiyar bazara:

  • doke kan ruwa da dantse;
  • fantsama;
  • zamewa tare da kandami tare da miƙa wuya.

Wannan halayyar tana biye da kai hare-hare. A cikin yaƙe-yaƙe, abokan hamayya suna ɗaga kirjinsu zuwa kirji a tsaye, suna kai hari tare da ƙafafunsu kuma suna bugawa tare da bakunansu. Mata suna yin ƙwai huɗu zuwa bakwai, pedasan ratsi mai ratsi suna hawa a bayan iyayensu.

Inda toan sanduna masu yawa suke rayuwa

Ananan koguna suna zaune a cikin tafkuna, ƙananan tafkuna, ramuka tsakuwa ramuka. Tsuntsaye suna ziyartar magudanan ruwa, wuraren shakatawa da ƙananan koguna. Grebes suna ƙirƙirar ƙananan yankuna a cikin manyan tafkunan ruwa mai tsabta a duk Turai, yawancin Asiya da Afirka, da New Guinea. A lokacin hunturu, suna motsawa zuwa buɗewa ko ruwan bakin teku, amma suna ƙaura ne kawai a waɗancan sassan kewayon inda ruwa ke daskarewa.

Toananan ɗakunan toadstools suna komawa wuraren shakatawa a cikin Maris. Gidajen suna shawagi, anyi su daga ciyayi, galibi ana ɗauke su daga ƙarƙashin ruwa. An gina dandamali da yawa har sai dayansu ya zama gida.

Kamar kowane ɗakunan toda, ƙananan ƙananan ƙananan gida suna tsere a bakin ruwa, tun da an ɗora ƙafafun a can baya, kuma tsuntsu ba ya tafiya da kyau. Greananan man shafawa suna da wahalar hangowa yayin da suke ɓatar da mafi yawan lokacinsu suna ɓoye a cikin ciyawar bakin teku.

Nau'o'in halaye na bayyanar

Smallananan toananan tekuna suna da launi baƙar fata a kawunansu, nape, kirji da baya. Kunci, makogwaro da wuya suna da launin ruwan kasa mai duhu, gefen kuma launin ruwan kasa ne masu duhu. Wani ɗan ƙaramin tabo mai launin rawaya a gindin bakin yana fitowa fitacce. Sauran bakin baki baqi ne mai kodadde. Suna da manyan kafafu masu duhu da yatsun kafa, da kuma idanun launin ruwan kasa mai launin ruwan kasa.

Birdsananan tsuntsaye sun fi manya girma, tare da launuka masu duhu a kai, nape da bayanta, suna da kunci masu launin rawaya-rawaya, gefen wuya, tarnaƙi, kirji da ƙasan wuya suna da launin ruwan kasa-ja. Alamun alamu masu duhu da haske sun kasance bayyane akan kawunan har zuwa farkon lokacin sanyi.

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Kalli bidiyon: Wildlife video diary The Great Crested Grebe one of the most striking birds of the Norfolk Broads (Nuwamba 2024).