Phil, I'm not so sure about Shrike-tit vocalizations, a couple of years ago
when a well-known NT birder and I were searching for them along the Central
Arnhem Highway, we got no response from a recorded Northern Shrike-tit
playback but as soon as I played the Eastern's call on my phone 3 birds
flew straight to us.
(but that is my only experience of this subspecies calls ;-) )
Tom
On Thu, Jan 3, 2013 at 3:20 PM, Phil & Sue Gregory <
> wrote:
> Ah yes, rosellas, maybe we should split Adelaide and the FNQ birds as
> well? I opted for a compromise as it seems to me Yellow looks so different
> and has different habitat, but these things are not exactly set in stone, I
> fear it's a case of large white-headed gull syndrome in Europe where there
> are a multitude of different ways to classify the species formerly known as
> Herring Gull. I tend to avoid going solely by DNA results, and like to look
> at morphology, habitat, vocalizations etc but it all comes down to a matter
> of opinion.
>
> The Ringnecks are a similar category, there was very interesting paper a
> while back (which I don't currently have to hand) which split out 3 quite
> distinct clades, roughly corresponding to Australian Ringneck, Mallee
> Ringneck and also Cloncurry Ringneck, and this made good sense to me though
> I have hedged on Cloncurry for the moment. Not sure where the Flinders Ra.
> birds fit, don't they look like the western types? Be good to have a look
> at Double-eyed Fig-Parrots too.
>
> Shrike-tits seem to me to be a clear cut split, with distinct morphology
> and occurring in areas with high endemism. Northern (and maybe also
> Western?) has very different calls, so rather than wait forever for DNA
> analysis results I went with what looks pretty clear already, indeed as the
> prescient Dick Schodde & ian Mason suggested in their landmark Directory of
> Australian Birds, where virtually all the proposed splits have come to pass
> or are pending.
> Cheers
> Phil
>
> Website 1: Http://www.sicklebillsafaris.com
> Website 2: Http://www.cassowary-house.com.au
>
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Tom Tarrant
Kobble Creek, Qld
http://kobble.aviceda.org
http://picasaweb.google.com.au/aviceda/
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