ɪɾ ɪz fˈɛɹli kˈɑːmən tʊ əbzˈɜːv ɐ tˈʌtʃ ʌv ɹˈuːfəs ˈaɪ.ˈiː., ɐ lˈaɪt ɹˈɛdɪʃbɹˈaʊn ɔnðə bˈɜːdz wˈɪŋz, ɪspˈɛʃəli wɛn sˈiːn ɪn flˈaɪt.
It is fairly common to observe a touch of rufous (i.e., a light reddish-brown) on the bird's wings, especially when seen in flight.