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White-bellied Erpornis zantholeuca Regurgitating a Pellet

on 9th April 2023

Pellet casting is well known among raptors and owls. However, many other birds also cast pellets including kingfishers, herons, shrikes, shorebirds, bee-eaters, some songbirds, etc.  Birds are possibly not frequently observed casting pellets as it may take 6-10 hours to form; hence the pellet may be expelled late in the day or in the early morning. 

I previously reported an Asian Brown Flycatcher regurgitating a pellet (Amar-Singh HSS 2017) early in the morning. On this occasion, 7th April 2023, at the Kledang-Sayong Forest Reserve, Ipoh, Perak, Malaysia, I observed a White-bellied Erpornis (Erpornis zantholeuca) casting a pellet.

I was watching a lowlands bird wave (mixed foraging party) that included:

Two Blue-winged Leafbirds (Chloropsis cochinchinensis), often the leaders of the event; 3-4 Eastern Crowned Warblers (Phylloscopus coronatus), 2-3 Grey-headed Canary-Flycatchers (Culicicapa ceylonensis), and others not identified.

 One White-bellied Erpornis stopped and appeared to ‘choke’. It then regurgitated and ejected a pellet. A composite of images showing the action attached.

 

Reference

Amar-Singh HSS (2017). Asian Brown Flycatcher regurgitating a pellet. Bird Ecology Study Group. https://besgroup.org/2017/10/29/asian-brown-flycatcher-regurgitating-a-pellet/

 

Dato’ Dr Amar-Singh HSS

Ipoh, Perak, Malaysia

 

 

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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.

LW Teo

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