Video S5. Female feeding 1-day-old chick

<p><strong>Video S5. </strong>Female feeding 1-day-old chick. The adult backs off the brooded chick. The altricial hatchling is able to elevate head and beg with open mouth. Female feeds small individual portions to the hatchling. Eggshells still present in nest; they were never ingested or removed from the nest (22 July 2021, 18:26:16 hr). 44.2 MB, .mp4 file, VLC Media Player.</p>