To all of those people who did the Lyrebird Survey this map can give an indication of what was going on this year.Geographic Information System (GIS) software was used to plot the location of all of the monitoring sites. Then the lines coming out from each site were drawn using the information that all the volunteers recorded during the survey. Once all the lines have been drawn we can then find points where several lines from different monitoring points intersect. At these points we can be confident that there was a Male Lyrebird calling during the survey period.
We were happy to have perfect weather for Lyrebird Counting, still calm conditions meant that Lyrebird calls would be easy to detect. We had an excellent turnout with 32 helpers including a contingent of Scouts. Ranger Craig briefed the early morning crowd about their roles and passed on his knowledge in terms of taking a compass bearing. We then raced out to our monitoring points, in order to be in position before the first birds began calling at the break of dawn. After only a quarter of an hour or so all groups recorded several different birds calling and there were a number of live sightings. It was then (as is the custom) time to migrate to the guesthouse for a hearty breakfast. After all the recordings were logged and mapped we can confirm at least 6 birds were present in the target area, which thankfully shows that the Parks Lyrebird populations are still going strong.
It’s on again. The Friends of Tarra Bulga are looking for interested volunteers to participate in our Annual Lyrebird Survey on Saturday June the 2nd. It involves an early start, people need to be at the Tarra Bulga National Park at 6am so we can get organised to get to our monitoring positions before sunrise. The survey itself only takes half an hour and after that a cooked breakfast is on the menu. If you would like to come along you need to contact ranger Craig Campbell on 5172 2508 or email firstname.lastname@example.org. Wear warm clothing, bring a watch, a torch and a compass (if you have one).
It was apparent early on that the moist conditions were very suitable for small hitchhikers so regular stops were made as seen it the picture below, to stop and search and turf off any castaways.
We organised a car shuffle and the walk started from the Tarra Bulga Visitors Centre. One of the first sections you encounter is through a pine plantation which is a bit dull, but that soon gives way to some impressive forest.
One early feature of the walk was the occurrence of several rare Burrowing Crayfish. As we got further into the walk towards the Tarra Valley section the large tree ferns became a feature with many epiphytic plants on their trunks as well as a range of impressive fungi species and the massive trees that are a feature of the park. The recent rainfall meant that gullies were flowing with water and it was a great opportunity to see some waterfalls cascading next to the track.
On Saturday March the 31st the friends held their annual Sycamore Maple pull. It was very encouraging to see that although there were still quite a number of large seedlings (up to 2.5m tall) and a bit of re-sprouting from previous weeding efforts. There was only a handful of new seedling sprouting (despite the wet seasons we have had) compared to the hundreds that we were pulling out when we first started working on this site back in 2006.
The source of the infestation was from some large established trees planted on the other side of the Tarra Valley Road. The large trees for many years had blown their light papery seeds into the surrounding native forest. Thanks to our efforts in starting the work in the park and with co-operation with the WGCMA and Parks Victoria, work was done to remove these large established trees, The photo above shows a large tree maple that was ringbarked and poisoned. Now all that should be required to stop the maple from spreading into the the magnificent forests of Tarra Bulga is a quick bit of regular follow up to eliminate any seedlings that pop up from viable seed still stored in the soil or regrowth of plants that we have already pulled out.
Sycamore Maple Removal
Fortunately we did not find to many plants that had re-grown but it was apparent that the ones that did resprout were generally not cut off very close to the ground. So the lesson learnt “cutting the stems as close to the ground as possible is vital”.
While we have had some great success with the maples here we have some more significant tasks ahead. This includes efforts to re-habilitate the site (only recently discovered) of a huge infestation of around 2ha of established maples in the park. In this area of the park there are also large infestations of Tutsan and Blackberries that are of great concern.
We had a great turn out for the annual lyrebird survey on June 4thwith 28 volunteers turning up. This included 8 scouts from Sale and their leaders and it was great to see a number of new volunteers.
Fortunately the rain held off but windy conditions meant that listening out for Lyrebird calls was a little tricky. People in more sheltered positions were lucky to hear good numbers of birds calling but people in the outlying areas e.g. Ranger Craig (stationed at the depot) did not hear as much of a chorus of calls as he would have hoped. A number of the scouts were very excited at the number of birds they heard and did extremely well to locate their stations in thedark given at least one marker post had been pulled out of the ground and hidden in the scrub prior to the survey. Evidently the scouts had a great time as they indicated they would be back next year to have another go.
A superb first up breakfast was provided by the new proprietors of the guest house (Nic and Steve) as a follow up to their great effort for the annual friend’s dinner. Thank you to Loy Yang Power for donating some funds to support the breakfast. It is probably a good thing that the count only happens once a year given the early start but it is certainly a great event, with the highlight certainly being the experience of hearing the wake up calls of the birds as the sun rises in the rainforest.
If you would like to hear about upcoming activities such as the upcoming 2012 Lyrebird Count – please submit your details in the form below.