The Annual Lyrebird Survey at Tarra-Bulga National Park has been carried out for the last 20 years as a means of detecting any changes of the population of the birds, within an area of the park covering from around the visitors centre area to the rainforest gully at the headwaters of Macks Ck. Although Lyrebirds are not considered endangered, they are at risk from natural disasters such as bushfires, habitat decline and attack from foxes, feral animals and domestic cats and dogs. The annual survey contributes to long term data on the density of the local population and helps park management plan their future management actions.
Superb Lyrebird calling from a tree branch.
The Lyrebirds are counted not by attempting to spot them visually, but by listening out for their song. (Sometimes you may be lucky enough to see a bird but often they are out of sight perched in a tree canopy or in ferny understorey). The survey is undertaken during the Lyrebirds’ breeding season. At this time mature male Lyrebirds are all actively searching for females to mate with and it is during this time when they are reliably singing for much of the day. The survey is consistently undertaken at dawn (when the wind is often calmer and the Lyrebirds begin their morning calls, usually while perched up in a tree).
The count is carried out by distributing groups of volunteers across the survey area at
Volunteers gathering before the count.
established monitoring points. Each of these points is marked with a numbered sign so that they can be found in the pre-dawn light. As the sun rises and the Lyrebirds start singing their varied repertoire, the volunteers use a compass to establish the direction the calls are coming from and estimate the distance (close, medium or far) that the call is coming from. The survey lasts for approximately 30 minutes, after which the volunteers generally go off and enjoy breakfast at the aptly named Lyrebird Cafe.
Once the survey is completed survey sheets are collected and the direction the calls were coming from are plotted as lines onto a map, where lines coming from several surrounding monitoring points meet, we can be confident that it is a location where a male Lyrebird was calling from.
Volunteers gathering before the count.
Instructions on how to use a compass to find the direction the Lyrebird is calling from.
Special guided walks led by Friends of Tarra-Bulga National Park will be held this Saturday March the 19th.
The morning’s guided walk will be is the Tarra Valley Rainforest walk – 10am Meet at the Tarra Valley car park (30 min)
The afternoon guided walk will be Corrigan’s Suspension Bridge circuit – 2pm Meet at the Visitor Centre (60 min)
The park visitors centre will be open from 10am to 4pm and along with the usual displays and information there will be a special screening in the theatrette featuring images from our fauna monitoring program.
To register for either walk (or both) go to www.walking.heartfoundation.org.au/events/event/ or phone Nikki or Stacey, local coordinators Heart Foundation Walking, on 1800 242 696.
The Green Walks in the Park program is sponsored by the Heart Foundation and every month there is a guided walk held at Tarra-Bulga National Park. The walks are a great way to explore the park as well as learn more about Tarra-Bulga from members of the Friends group or a Park Ranger along the way. The next two walks will be held on Tuesday November the 4th (Cup Day) and Monday December 1st. Both departing from the visitors centre carpark at 10am. To register contact Bonnie, Local Coordinator Heart Foundation Walking on 1800 242 696 further details here Green Walks Nov and Dec 2014
Green Walks in the Park
These photos supplied by a follower of our Facebook page were taken yesterday morning, when we had a nice dusting of snow. Beautiful conditions for sight seeing and not too much snow (which can damage the vegetation that is not used to snow).
Welcome to Balook
Snow Covered Ferns
Also check out the photos from a similar event 12 months ago.
Snow at Tarra-Bulga