Following our run down the Darling River
(see previous post) from Bourke to Wilcannia, we headed north from Wilcannia up
to White Cliffs, an old opal mining town with a population of 200. We stayed the
night at the caravan park as there were very few suitable places to bush camp
in the area which is very open with few trees.
From White Cliffs we drove west and then
south on unsealed roads of variable quality to Mutawintji NP where we camped
for three nights at Homestead Creek Camping Ground, the only camping area in
the park.
Not far north of White Cliffs we came upon
a group of 6 male Bustard both on the road and beside the road. We stopped and
edged forward hoping for some close photos however they seemed a little shy and
as we moved up they slowly crossed the road and then took flight. Male bustards
gather to display in the lead up to breeding. None of the birds in this group
were displaying and being the 4th of July it was a little early for
the August – November breeding season, however the gathering of males probably
related to the mating process.
One of the six stately Bustards slowly crossing the road north of White Cliffs. |
.... safely across the road and shortly before taking flight. |
It is always a pleasant surprise to come
across these widespread birds, which are now either extinct or uncommon in more
settled areas but still common enough in more remote areas.
Mutawintji NP, which is located 130km north
east of Broken Hill, is dominated by the red rocks of the Byngnano Range,
eroded sediments from a 400 million year old seabed. The creeks and gorges are
lined by redgums and contain rock pools. There is evidence of Aboriginal
occupation of the area dating back at least 8,000 years and rock art sites with
some exceptional rock engravings which are a must see if visiting the
park. The petroglyphs are in a restricted access area and can only be seen on
an organized tours which are operated on a regular basis. There are a range of
excellent walks in the park of various lengths and grades.
Eroded 400 million years old sedimentary rocks on the Byngnano Range. |
The park received some good rain in April 2014,
which generated fresh growth and attracted a good number of birds. We recorded
49 species over two full days in the park and a couple of half days. Some emu
bushes were in flower attracting Pied and White-fronted Honeyeaters in addition
to the usual White-plumed and Spiny-cheeked Honeyeaters. There were also large
numbers of Little Friarbirds along Homestead Creek, they visited the camping
area late each afternoon when they spent a lot of time chasing one another
between foraging in the redgum canopies.
As we reached a high point on the Byngnano
Range walk a pair of Wedge-tailed Eagles entertained us with an aerial display
in the brisk northerly breeze.
A pair of Wedge-tailed Eagles in formation flight above Byngnano Range. |
A little further on, a third Wedge-tailed
Eagle was chased by an Australian Raven, which must have had a nest nearby, or perhaps the Raven considered this part of the range its territory?
We were entertained by this real life drama as an Australian Raven repeatedly attacked the Wedge-tailed Eagle. |
The Raven added a verbal assault to its attack. |
The Australian Ringneck Parrot is a common
outback species with four sub species, the Port Lincoln, Twenty-eight,
Cloncurry and Mallee. The Mallee Ringneck was the race we saw throughout our
trip, a young bird plus an adult were feeding on small green fruits on a spiky
bush beside Homestead Creek.
A juvenile Mallee Ringneck feeding on small green fruits. |
An adult Mallee Ringneck - shortly after this shot this adult bird moved over and fed the juvenile some regurgitated fruit. |
There were scattered stands of Eremophila species
in flower following the rain in April and good numbers of White-plumed, Singing,
Spiny-cheeked, White-fronted and Pied Honeyeaters plus Mistletoebirds were
feeding on the nectar. They were both very active and very wary so getting some
photos proved to be frustrating as I could not get close enough and none of the
birds would sit still long enough. Here are a few shots for the record.
Several male/female pairs of Mistletoebirds actively chased one another in between feeding on Eremophila flowers and mistletoe fruits growing on the Eremophila bushes - this is a male. |
A White-fronted Honeyeater - I would have liked a closer shot of this rather weird looking bird. |
Both Fan-tailed and Pallid Cuckoos were fairly
common across the area where we travelled with the Fantails found mostly in woodlands
and along water courses and the Pallid out on open plains. This Fan-tailed came in
close to our camp on Homestead creek.
A Fan-tailed Cuckoo perched in Redgum on Homestead Creek. This nest parasite most often places its egg in the domed nest of tiny fairy-wrens, thornbills and scrubwrens. |
Kangaroos were common throughout our trip
with four species seen including the Red, Eastern Grey, Western Grey and Common
Wallaroo (aka Euro).
The rocky Byngnano Range and adjacent open plains habitat suited the Common Wallaroo or Euro - note the shaggy coat and large black nose, the colour or shade of their coat is quite variable. |
Goats were also common throughout the trip
including in National Parks and at Bowra Sanctuary Qld.
The rocky habitat also suited feral goats. We found goats in all of the National parks we visited. |
Goats first arrived in Australia in 1788
with the First Fleet to be used for meat and milk. They are now widespread and
feral across semi arid country where rocky hills and dense scrub provide
shelter and where water is available. They have become an important source of income
both as a compliment to sheep grazing and farmed alone in their own right. A
lot of arid country has become so poor after 150 years of over grazing by
domestic stock and feral animals, especially rabbits in the past before
biological control methods were introduced, that it will no longer support a
viable sheep operation and now goats are being run as the only way to extract a
return from country where, I fear, the plant bank is heading towards bankruptcy.
Most of the meat is exported to the Middle
East where there is a large and growing demand for Australian goat. Goats are
smart animals, love climbing and are hard to control as most outback fencing
barely controls sheep and cattle and offers little impediment to goats which
simply walk through most fencing. The rule we were told for outback grazing
properties was, “ if a goat is on your property, it is yours”. So goats are
rounded up and the ones suitable for the meat market are separated out and sold
and the rest are let go or destroyed. From what we have seen in National Parks
and at Bowra Sanctuary the contracts let to remove goats look more like goat
farming than eradication and there appears to have been no noticeable reduction
in goat numbers over the years. Unless high quality and very expensive fences
can be erected around the parks then keeping goats out is almost impossible and
just attempting to keep the numbers under control becomes the only current option.
The problem I see with goats is that they
are transforming our arid rangeland landscapes and habitats. They eat a wide
range of plants and many plant species are being eliminated as there is no recruitment
of new plants and trees as many species cannot survive to an age and size where
they are above the browsing height of goats. Goats are reducing biodiversity
and over time I fear they could cause desertification of large areas of arid
Australia or at least reduce areas to much simpler ecosystems dominated by
plants unpalatable to goats and other herbivores.
If you Google “the role of
goats in desertification” you will find a large amount of material on this
world wide problem. The deserts of Northern Africa and the Middle East were
caused by over grazing by sheep and goats, which may have taken hundreds or
even thousands of years to achieve. We have been grazing hard hoofed animals in
Australia’s unique environments based on ancient and fragile soils for less
than 200 years. I suspect goats are not sustainable in our arid rangelands and
the changes they are driving far from finished. Apart from the massive impact
on our natural heritage, both flora and fauna (does anyone really know how many
species we have lost already in just a couple of hundred years?), the impact of
further desertification of large areas of inland Australia’s already hot
and dry climate, coupled with atmospheric carbon pollution driven climate change,
will not be positive and in fact could be extremely costly.
As one travels the outback one can’t help
but notice the impact of over grazing and ponder, as the long distances of dirt
roads roll by, just what the introduced grazing animal’s impacts are and where
our treatment of this arid country is headed long term.
From Mutawintji we drove to Broken Hill
where we spent a couple of days before heading east to Kinchega National Park
near Menindee on the Darling River.
The Bustard against the red soil is stunning. I agree that goats are causing devastation, and that it will only get worse.
ReplyDeleteThose two Wedge-tailed Eagles look like first-year immature birds. Siblings often stay together for at least the first year. If "pair" just stands for 2, you are right. If "pair" means "mating partners", I doubt it. Great photos, for sure!
ReplyDeleteThanks for making the point regarding age of the two WTE's in formation flight shots. I agree they are juveniles and I did use the term pair meaning two birds and not a mating pair. None of their aerial display looked like mating interaction to me. The third bird being chased by the raven is also a juvenile. I determined it was a third bird and not one of the pair seen a little earlier and nearby based on the tatty flight feathers and the fact that I had seen the pair disappear well to the north and away from where the third bird first appeared. Thanks again for the comment - a good reminder to point out where possible the sex of birds and whether they are juveniles or adults, in breeding or non breeding plumage etc.
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