These are Simon's thoughts, shared with his permission.
Polly, the tree in your photo, could be a little bit younger, but as Simon points out, it is hard to tell.
I wasn't aware of any field study. This extract (p. 12) from the biodiversity assessment states there was only desktop assessment and aerial reconnaissance:
Our final #plantBBQworkshop was yesterday at Tamworth RFS.
Huge thanks to all who came, and to Bron Waters and her team at Tamworth RFS for hosting, and to Wally Hammond and Andrew Jack (NW LLS) for catering.
Photos by Jon Sullivan.
It was great fun yesterday at our second #plantBBQroadshow event in my home town of Gunnedah.
We had a great mix of people come along. Thanks to the Gunnedah Show Society for hosting and catering.
Photos by Jon Sullivan.