what chance an upcoming irruption of Letter-winged Kites?

["Paul Dodd" <>]

If you check "Old Atlas" in Birdata, it shows the sightings from the 1st
Atlas. I didn't bother drilling into any of the sightings, but it seemed to
cover a reasonable part of Victoria.

Interestingly Eremaea shows the following sightings of LWK for Victoria -
some of the more recent sightings were also reported on Birdline:

11-12/12/1976 WTP (BOCA Young Members week-end camp)

23/7/1977 WTP (BOCA Young Members)

17/03/1977 Ventnor

2/4/1977 Bendigo

15/08/2004 Yanak

18/5/2005 Echuca

9/3/1990-31/10/2009 Horsham area (unfortunately no more precise date for
this sighting).


Paul Dodd
Docklands, Victoria


-----Original Message-----
From: 
 On Behalf Of martin butterfield
Sent: Tuesday, 19 January 2010 6:22 PM
To: Mike Carter
Cc: 
Subject: what chance an upcoming eruption of Letter-winged
Kites?

Mike

A clear demonstration of the value of a long memory.

Your post caused me to look at the 1st Atlas of Australian Birds (1977 to
1981) which clearly shows the much wider distribution of the species than is
shown in Birdata or the 2nd Atlas.  Presumably this distribution is the
result of the '76-77 and 80-81 irruptions?

Can it also be inferred that there has not been a major irruption since 1981
(ie about 29 years ago)?

Martin

On Tue, Jan 19, 2010 at 5:23 PM, Mike Carter <> wrote:

> Martin Butterfield on Tuesday, January 19, 2010 10:46 AM said
>
>
>
>  Looking at the Birdata map for the species
>> http://www.birdata.com.au/maps.vm,
>> not very high!  There appears to be one VIC record somewhere NW of
>> Warracknabeal.
>>
>
> Then Birdata is wrong or is for only a restricted time period.
> Letter-winged Kites occurred in Victoria in the irruptions of 1966-70,
> 1976-77 when they were widespread, e.g. up to 95 at Werribee sewage farm
> (now the WTP) and 16 at Carrum Downs (now the ETP), and in 1980-81.
>
> Mike Carter
> 30 Canadian Bay Road
> Mount Eliza  VIC 3930
> Tel  (03) 9787 7136
>
>
>
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