ðə klˈʌtʃ ʌv wˈʌn ɔːɹ tˈuː ˈɛɡz ɪz ˈɪŋkjuːbˌeɪɾᵻd fɔːɹ ɚɹˈaʊnd θˈɜːɾi sˈɛvən dˈeɪz, bɪɡˈɪnɪŋ ˈæftɚ ðə fˈɜːst ˈɛɡ ɪz lˈeɪd.
The clutch of one or two eggs is incubated for around 37 days, beginning after the first egg is laid.