The sulphur crested cockatoos are perched up high in the river gums that surround the dam. Their loud and raucous calls fill the air and drown out the sounds of the other birds that live and feed around the water’s edge. Every few minutes some of the large, white parrots fly down into the acacia bushes that grow along the pathway in search of food. They tear off some of the brown, elongated pods and fly back into the higher branches where they manipulate them with their feet and beaks to extract the seeds.
Acacia pods with seeds exposed
Sulphur crested cockatoo eating acacia seeds
Wynne Vale Dam is just a fifteen minute bike ride north of Tea Tree Plaza along the Dry Creek trail which can be easily accessed from the bridge over Ladywood Road near the Modbury Hotel. It is a great way to break up the shopping chores or get some exercise after lunching at one of the nearby hotels and restaurants. The small lake is part of a stormwater reclamation and creek improvement project and is surrounded by a track with viewing platforms, interpretive signs and a sizeable earthen dam on the southern edge.
Wynne Vale Dam from the viewing platform
After watching the birds feeding for a few minutes I climb back on my bike and cycle round to the other side of the dam. Leaving the pathway I shift the mountain bike into low gear and pedal along an exposed stretch of the embankment bumping over a tangle of roots that radiate from a stand of partly submerged trees. Their skeletal trunks and branches are the perfect vantage points for a white faced heron to scope out its prey and a freshwater turtle to bask in a patch of early morning sunshine. White faced herons are quite common along the banks but the turtle is a more unusual sighting.
White faced heron surveys its kill zone
Short necked turtle on a partially submerged tree branch
Just as I start to move off to my next location I catch site of a medium sized bird roosting high in one of the old willows that overhang the water. It is a nankeen night heron. Easily recognised by their cinnamon plumage and shorter powerful, beaks these herons tend to stay hidden during the day feeding in the morning, evening and sometimes at night; a behaviour that is referred to as crepuscular.
In the winter months the water level rises considerably covering the embankment
Nankeen night herons feed on aquatic invertebrates and small fish
After photographing the heron I cycle around the lake once more to make sure that I haven’t missed anything too obvious then head back down the western side of the creek. Where the dam ends and the creek re-emerges there is a line of exceptionally tall river gums. And there, right in my line of vision, are two koalas climbing up into the branches. Koalas, nankeen night herons and a turtle on one short ride. Not a bad morning’s work.
A pair of koalas climbing. Probably an adult female and mature joey.
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Baz
Naturally South Australia 