Sulphur crested cockatoos digging furrows in the ground

To: "'Birding Aus'" <>
Subject: Sulphur crested cockatoos digging furrows in the ground
From: "Cas and Lisa Liber" <>
Date: Thu, 15 Apr 2010 00:25:12 +1000
I noticed this weird behaviour at the Royal Botanic Gardens in Sydney -
Sulphur crested cockatoos were digging quite straight furrows in the ground
with their bills, in the soil directly under the canopy of a fig tree. I
couldn't see them extracting anything from the soils such as grubs or


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