When approached on the nest, the adults will get airborne and observe the intruder from above, unlike related hawks, which usually wait much longer to flush and then launch a determined attack.
wˌɛn ɐpɹˈoʊtʃt ɔnðə nˈɛst, ðɪ ɐdˈʌlts wɪl ɡɛt ˈɛɹboːɹn ænd əbzˈɜːv ðɪ ɪntɹˈuːdɚ fɹʌm əbˈʌv, ʌnlˈaɪk ɹᵻlˈeɪɾᵻd hˈɔːks, wˌɪtʃ jˈuːʒuːəli wˈeɪt mˈʌtʃ lˈɔŋɡɚ tə flˈʌʃ ænd ðˈɛn lˈɑːntʃ ɐ dɪtˈɜːmɪnd ɐtˈæk.