Bob inspects the damage caused by Yellow-tailed Black Cockatoos as they’ve broken open a small tree trunk in their search for the chunky grubs inside. The hollow chamber in the wood is where the grubs were picked from. It’s hard to imagine the strength that’s required of the beak and jaw to rip a tree apart like this.
Just for a change, this weekend’s bushwalking didn’t involve a gorge 
Instead we spent time around, and in the vicinity of, Dumaresq Dam, not far from Armidale. Once upon a time the dam held the main water supply for Armidale but is now a recreation area.
Pictured here, in the foreground, are some young grass trees; more mature grass trees are close by, but out of sight.
