Grey-rumped Treeswift feeding chick – on video

on 1st September 2015

Johnny Wee’s earlier account showed in vivid details an adult female Grey-rumped Treeswift (Hemiprocne longipennis) feeding a large chick as they both perched side by side on a branch.

What the series of still images is unable to show is how the feeding is initiated. And this is where Kumchun Chan’s video clip complements the images – see below.

According to Chantler (2000), “The feeding process is preceded, or initiated, by sibilant screaming (less shrill than that of the adults) and waving of the open bill.”

The second video (above) shows the chick alone by the nest making begging cries to the adult (probably nearby) for food and testing its wings to prepare for fledging.

Kumchun Chan
September 2015

Chantler, P. (2000). Swifts. A guide to the swifts and treeswifts of the world. New Haven & London: Yale University Press. 272 pp. (2nd ed.)

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.

If you like this post please tap on the Like button at the left bottom of page. Any views and opinions expressed in this article are solely those of the authors/contributors, and are not endorsed by the Lee Kong Chian Natural History Museum (LKCNHM, NUS) or its affiliated institutions. Readers are encouraged to use their discretion before making any decisions or judgements based on the information presented.

YC Wee

Dr Wee played a significant role as a green advocate in Singapore through his extensive involvement in various organizations and committees: as Secretary and Chairman for the Malayan Nature Society (Singapore Branch), and with the Nature Society (Singapore) as founding President (1978-1995). He has also served in the Nature Reserve Board (1987-1989), Nature Reserves Committee (1990-1996), National Council on the Environment/Singapore Environment Council (1992-1996), Work-Group on Nature Conservation (1992) and Inter-Varsity Council on the Environment (1995-1997). He is Patron of the Singapore Gardening Society and was appointed Honorary Museum Associate of the Lee Kong Chian Natural History Museum (LKCNHM) in 2012. In 2005, Dr Wee started the Bird Ecology Study Group. With more than 6,000 entries, the website has become a valuable resource consulted by students, birdwatchers and researchers locally and internationally. The views and opinions expressed in this article are his own, and do not represent those of LKCNHM, the National University of Singapore or its affiliated institutions.

Other posts by YC Wee

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