Grey-rumped Treeswift: Male feeding chick and calling female for a shift change

video grab
video grab

Jeremiah Loei documented a male Grey-rumped Treeswift (Hemiprocne longipennis) brooding a chick and feeding it in the nest (above, below, also video below). As with swifts, the adult feeds the chick with a bolus of food regurgitated from the throat directly into the open mouth of the latter. Note that it takes time for each bolus to be regurgitated.

video grab
video grab

In the video below, the male calls to the female, who soon flew over to relieve him of his brooding duty (below).

Jeremiah Loei
26th June 2017

This post is a cooperative effort between Birds, Insects N Creatures Of Asia and BESG to bring the study of birds and their behavior through photography and videography to a wider audience.

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