A few friends and I are in the habit of setting out Sony note-taker audio recorders in an attempt to record wildlife sounds. It can be a worthwhile experience capturing the like of Lyrebirds mimicking in choruses of Kookaburra, Currawong and other birds song.
The little Sony recorders run for 5 days on continuous record in high quality mode on 2 AAA lithium batteries. I suspect it is nearly CD quality. That is a lot of recordings usually... About 8 gigabyte. Reviewing 120 hours of sound is simplified by viewing the wave forms of each 6 hour file in an audio editor. Sound stands out and things like overhead passing planes are easily identified. Hopefully, with my mates permission, I will publish his latest Lyrebird recording. It runs for 4 minutes and mimics a host of birds.
Another friend recorded a rare Barking owl in Brindabella National Park with a barking call when distressed that escalates into what has been described as a woman's scream. It was interesting to note that he also recorded gunfire as per the NSW Governments allowal of recreational hunting in the area. Anyway... there are only about 40 breeding pairs of Barking owl left in Victoria... I don't know about here.
The strange recordings... On reviewing my latest recordings I was surprised to find 4 recordings over the wee small hours of three consecutive nights I thought particularly odd. Now let me say I have set recorders in unison with cameras many times. Wildlife shows absolutely no interest in these recorders. Secondly this was a remote location where it would be unlikely to meet anyone during the day let alone 'running' around at night.
Note: Please use headphones...
I often wonder what goes on in the 1000 square kilometers of Namadgi. There are a lot more remote places in the park than are defined by TAMS walking trails and who goes off those generally? I was introduced to what is today National Park in the 1970'. Before gates and the controlled access of today. This in retrospect has been a very good thing for the environment. We were terrorists in hindsight. Anyway... Odd enough to mention I reckon. I suppose not many people are recording the sounds of the forest when no-one is there.
So to the bloke running, walking, licking, sniffing and tampering with my recorder over 3 nights... Mate what are you doing up there?