Nnukwu nnụnụ a na-akpọ giant ibis bụ nnụnụ na-ebi n'ala dị larịị nke na-adị n'ala ahịhịa, ala mmiri, ọdọ mmiri, osimiri ndị sara mbara, ala mmiri na oke ọhịa mepere emepe yana ọdọ mmiri, ọdọ mmiri na mmiri mmiri n'oge okpomọkụ n'ime oke ọhịa. A na-ahụkarị ya na ala dị larịị. A chịkọtara otu nnụnụ n'ọhịa Malay. Na mbụ, a kwenyere na nnukwu nnụnụ a na-amụba na ndịda ọwụwa anyanwụ Thailand, etiti na ugwu Cambodia, ndịda Laos na ndịda Vietnam. Ọ ka na-adịkarị na Mekong Delta ruo n'afọ 1920 ma ugbu a ọ fọrọ nke nta ka ọ bụrụ na ọ gwụla, na obere ọnụ ọgụgụ fọdụrụ na-amụba na Cambodia, ndịda Laos na ikekwe na Vietnam. Ajụjụ: Gịnị bụ ebe obibi nke ibis?
marshes, swamps, lakes, wide rivers, flooded plains and semi-open forests as well as pools, ponds and seasonal water-meadows (ala ahịhịa mmiri, ọdọ mmiri na ahịhịa mmiri oge)