Also useful for Blackish Ducks, from May 2009 –
From: Robin Hide [
Sent: Monday, 18 July 2016 7:07 AM
To: Canberra Birds
Subject: [canberrabirds] RE: A query about White-winged Choughs and soil
Thanks to all for their helpful answers/comments on my query.
Reminder to self – check the chatline archive first! - Geoffrey Dabb posted excellent images of the practice back in 2008:
http://bioacoustics.cse.unsw.edu.au/archives/html/canberrabirds/2009-05.html
Robin
From: Robin Hide
Sent: Sunday, 17 July 2016 5:53 PM
To: Canberra Birds
Subject: [canberrabirds] A query about White-winged Choughs and soil
Do Ww Choughs use clay/soil for other purposes than making nests?