On Thursday last week, The Friends of Drouin's Trees conducted their first bird surveys of Drouin.
Bird numbers and species are a good bio-indicator. When bird surveys are done for a given area at regular intervals, changes in bird populations can be tracked. This can provide an indication of the health of an ecosystem.
Population changes in species can help focus some conservation efforts. Bird species at risk can be identified and when the data is compared to similar surveys of nearby areas, or even nationally or globally, analyses by experts can determine the risk of survival for individual species.
Apart from all that, doing a bird survey is pretty enjoyable as all participants discovered on Thursday.
The Friends of Drouin's Trees surveys last week covered eleven areas in and around Drouin …
Thornells Reserve, 'Golden Whistler Reserve', Amberly Estate Woodland Conservation Reserve, McNeilly Wetlands, Balmoral Park, Civic Park, Old Drouin Nature Reserve, Summerhill Wetlands, Bellbird Park & Wetlands, Alex Goudie Reserve, Elizabeth Cl Urban Woodland & Crystal Waters.
|Golden Whistler Reserve - between the Drouin golf course and the freeway.|
Each area was 'surveyed' for around 20mins. Two groups of surveyors were involved each with at least one experienced birdwatcher present.
Highlights were probably the sighting of Dusky Woodswallows at Amberly Estate and a Long-billed Corella at Alex Goudie Reserve. Woodswallows are seldom seen so close to an urban area and the Long-billed Corella, now recorded several times is an indication this species is expanding its range, similar to the Little Corella that we now have in large flocks.
|Long-billed Corella at Alex Goudie - thanks for the image Jack, a good record.|
|A pair of Dusky Woodswallows were ticked at Amberly Estate.|
Other interesting observations included Rainbow Lorikeets inspecting nesting hollows and Australasian Grebes with babies – both seemingly out of season activities
The results of our survey will be recorded with Birds Australia. The next round of Drouin bird surveys will be conducted in October when the Spring migrants are arriving.