Re: Tasmanian migrants and brolgas

To: "Birding Aus" <>
Subject: Re: Tasmanian migrants and brolgas
From: "Glen Ingram" <>
Date: Thu, 21 Aug 1997 22:16:59 +1000
 Dear John,
 J. Diamond did a big thing on "water-crossers" back in the 70s, I think.
 Water included rivers to straits. I do not know if it is a "scholarly
 analysis". That sort of stuff was banned then.
 I cannot remember where he published it. Someone will tell us, though.

 Sorry, to waffle. I am a little disoriented. I was only informed the other
 day that my paternal Great Great Grandmother and father were Tasmanians.
 This kind of shock takes a bit getting over.
 Glen Ingram
 Brisbane, Australia.

 "Maturation can lead to blindness."
> ---------
> > From: John Gibson <>
> > To: 
> > Subject: Tasmanian migrants and brolgas
> > Date: Thursday, 21 August 1997 15:35
> > 
> > 
> Spring must be here even in Hobart - I heard my first black faced cuckoo
> shrike for many months at lunch time. This led me to ponder the question
> why some birds (including small ones like silvereyes) happily migrate
> across Bass Strait, whereas other eminently migratory species, eg olive
> backed orioles, stop at Wilson's Prom. Presumably many migratory species
> reached 'Tasmania' when a land bridge still existed to the mainland, and
> the ones that still reach here have retained some memory/instinct of
> southern climes. The species that don't cross Bass Strait might have
> expanded their range to the south as temperatures warmed and after the
> bridge disappeared, and thus now think there is nothing beyond the Prom
> (like many mainlanders!)
> Does anyone have any deeper thoughts on the subject, or is there perhaps
> some scholarly analysis of which species go where?
> <snip>

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