Barking up the wrong tree?

This Grey Currawong (Strepera versicolor) was recorded on remote camera at a Strath Creek Biodiversity Project site on a steep slope of the ‘Three Sisters’, Flowerdale.  It seemed to be searching for something under the bark of a Long-leaf Box tree (Eucalyptus goniocalyx), which still shows the scorch  marks from the 2009 Black Saturday bushfires.

It spent about 15 minutes on one day without apparent success, then returned for a short period the next day, before flying off empty-handed (-billed?).

As can be seen in the video, the Grey Currawong has a long pick-like bill that it often uses to lever off bark and winkle out invertebrate prey hidden underneath. Its main vocalisation is a ringing two-note call which can be heard by clicking on the audio bar below.