A Visit to Victoria (6)

["Philip Veerman" <>]

That is interesting. I wonder whether Martin also raised his questions and concerns with whoever authority put up the sign. I note the sign refers to "other native birds and animals", so it does not look like that they are in doubt that this species is a native. Decades ago this species did not occur in that area. There are similar issues with the Rainbow Lorikeet in SW Australia. There were even concerns that the Long-billed Corella was in major decline until they learned to adapt to farming practices which enabled them to spread greatly. I am a bit lost as to whether Little Corellas are also considered as part of the problem. The annoyingly inadequate "New Atlas of Aust birds" doesn't give information, apart from by comparison with the first atlas and that is to show the great expansion onto the east coast.

 

Philip

 

-----Original Message-----
From: Martin Butterfield [
Sent: Monday, 29 September 2014 5:16 AM
To: Geoffrey Dabb
Cc: COG List
Subject: Re: [canberrabirds] A Visit to Victoria (6)

WRT Long-billed Corellas Geoffrey mentioned "...there is a gap in the distribution between about Deniliquin and Canberra ...".  We visited Finley, about 60km East  of Deniliquin late last week and spotted 5 Long-bills in the showground.  When we dropped a tad (~20km) down to the mirror we found that the species wasn't welcome:

​It is interesting in that there seems to be uncertainty whether the Burghers of Berrigan regard the Corella as a native bird or not.  I'm not sure what is meant by a loss of public amenity but would have thought the use of scare guns and live ammunition would constitute a far greater loss of this attribute of the river bank (and the scare guns would also drive off all native fauna not just the Corellas).

Martin

Martin Butterfield

http://franmart.blogspot.com.au/

On 23 September 2014 13:57, Geoffrey Dabb <> wrote:

Thursday.  I now find that when I drove past Horsham I was close to where Stephanie and Matt were finding red-tails a few days before:  

 

…  we spent the weekend camping on a private property bounding Jilpanger Flora and Fauna Reserve, south of Horsham, and were lucky enough to see two Red-tails fly through late on Sunday afternoon, and hear them again in the distance on Monday morning. Our friends, the owners of the property, tell us they see them about 40% of visits to the block …

 

Oh well.  I spent that night at Terrick Terrick State Park, a locality famous for plains wanderers but a species I did not feel confident in pursuing at the time.  Otherwise, the park is not particularly birdy, in my view.  I spent a few hours around Echuca where the Long-billed Corellas were very obvious.  The below were part of a flock of about 70.  A recurrent question is where Canberra’s long-bills come from.  In the early days of European settlement the species was said to be abundant along the Murrumbidgee and Loddon Rivers, only to be forced to retreat drastically under pressure from land clearing and sheep grazing.  Its recent expansion is said to be due to discovery of onion weed as a food source. It is a possibility to be considered that the small numbers in Canberra represent individuals that have pushed east from the growing population in the riverina  -  a kind of recolonization.  However Canberra is on the fringe of an eastern distribution believed to have originated from presumed escapes in the Sydney area. Also, unlike the pattern for the Little Corella, there is a gap in the distribution between about Deniliquin and Canberra, so the eastern-origin theory seems more persuasive.