ðə spəsˈɪfɪk ˈɛpɪθɪt mˈæɡnɪɹˌɑːstɹɪs kəmbˈaɪnz ðə lˈætɪn mˈæɡnəs mˈiːnɪŋ "ɡɹˈeɪt" wɪð ɹˈɑːstɹɪs mˈiːnɪŋ "bˈɪld".
The specific epithet magnirostris combines the Latin magnus meaning "great" with -rostris meaning "billed".