ðɪ ˌʌndˈɜːwəɪŋ ɪz wˈaɪɾɪʃ, wɪð ˌɪndɪstˈɪŋkt bɹˈaʊnɪʃ bˈɑːɹɹɪŋ ɔnðɪ ˌʌndˈɜːwəɪŋ koʊvˈɜːts, ðæt ɛkstˈɛndz ˌɑːntʊ ðə flˈæŋks ænd θˈaɪz.
The underwing is whitish, with indistinct brownish barring on the underwing coverts, that extends onto the flanks and thighs.