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Local extinction?

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Subject: Local extinction?
From: <>
Date: Wed, 7 May 2008 13:49:49 +1000
Hi all,

The discussion on ferals has got me thinking. One of the first birds on my life 
list was the Red-whiskered Bulbul. When growing up near the Yarra they were 
never common but could always be found in our street.

In recent years the only location I had for them was the boulevard in Ivanhoe, 
and even then there were only one or two. From about 2000 we would go over at 
least once a year to get them on the year list. In 2007 we could not find any, 
nor again in 2008. It seems that the last of these “ferals” in Melbourne has 
fallen off its perch – or had that perch chopped from beneath it?

The loss is certainly not a threat to the world population, and some may 
applaud this loss, BUT; it has made me realize how easily a bird can become 
locally extinct without anyone particularly realizing it. It also shows, to me 
anyway, how important the B-A and DSE atlas’s are and how important records 
are. For example I have reported two mammal sightings to DSE this year, mainly 
to find out what I had seen, and in both cases the sighting was from a location 
not recorded before for the species. If we do not know were our birds and 
mammals are we may not notice when their range changes.

Back to the Bulbuls, perhaps future field guides will now need to delete them 
from the Melbourne area?

As an aside we are off this weekend to see the reported flocks of Flock 
Bronzewing. The sight of 1000s of these birds in a flock seems somewhat iconic 
to the outback and is something I have wanted to see since I first started bird 
watching. I also relate it to the historic reports of the American Passenger 
Pigeon. I do hope our Bronzewings never suffer the same fate.

Happy birding everyone

Jen


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