Like, the day you see them. A few of us South Ozzies went after the Mt Arden ones a few years ago. We found about a dozen and ticked them immediately. How is one supposed to know their age or generation? All we knew was that some had been in the area since early last century. So should we have waited for a three generational time lapse (20 years?, anybody’s guess) and gone back for another look ? Nonsense, I’d be well and truly in my box before then.
Tony
