birding-aus

Poisonous Aussie birds.

To: Stephen Ambrose <>
Subject: Poisonous Aussie birds.
From: Carl Clifford <>
Date: Wed, 16 May 2012 19:01:33 +1000
Stephen,

Perhaps sodium fluoroacetate is attracted to bone structure, so as to provide a 
readily available source of F for bone growth and regeneration? What do you 
think?

Cheers,

Carl Clifford

Sent from my iPad

On 16/05/2012, at 18:30, "Stephen Ambrose" <> wrote:

> Thanks Clifford, I thought that may be the case. But it doesn't explain how
> sodium fluoroacetate can be stored in the bones of Bronzewing Pigeons,
> unless there is rapid uptake by the bones, i.e. before the compound is
> broken down.
> 
> I also recall from the time when I was a student at the University of WA
> (late 1970s/early 1980s) there was some research that suggested secondary
> poisoning from 1080 was responsible partly for the decline in the abundance
> of the Little Eagle in South-western Australia. I don't know if that finding
> was eventually debunked.  If it wasn't, perhaps secondary poisoning occurred
> as a result of the consumption of the prey's entrails where the 1080 had not
> yet been fully digested/broken down.
> 
> Kind regards,
> Stephen Ambrose
> 
> 
> -----Original Message-----
> From: 
>  On Behalf Of Carl Clifford
> Sent: Wednesday, 16 May 2012 5:08 PM
> To: Stephen Ambrose
> Cc: Birding Aus
> Subject: Re: [Birding-Aus] Poisonous Aussie birds.
> 
> Stephen,
> 
> Sodium fluoroacetae, AKA 1080, breaks down very quickly once ingested, and
> has an extremely low risk of secondary poisoning. Very hard to detect post
> mortem, very bad for rich Grannies and Aunties.
> 
> Cheers,
> 
> Carl Clifford
> 
> Sent from my iPad
> 
> On 16/05/2012, at 14:06, "Stephen Ambrose" <> wrote:
> 
>> The poison in Gastrolobium is sodium fluoroacetate (also known as 1080).
> In
>> Australia, natural occurrences of sodium fluoroacetate occurs mostly in
>> Gastrolobium species, and nearly all species in this genus are restricted
> in
>> distribution to South-western Australia.  Twigg & King (1991) found that
>> Emus also had a high tolerance to the poison when feeding on Gastrolobium
>> seeds, but I don't know if it accumulates in the Emu's body, is
> metabolised
>> or excreted.
>> 
>> Stephen Ambrose
>> Ryde, NSW
>> 
>> Reference:
>> 
>> Twigg, L.E. & D.R. King (1991).  The impact of fluoroacetate-bearing
>> vegetation on native Australian fauna: a review. Oikos 61: 412-430
>> 
>> 
>> 
>> 
>> -----Original Message-----
>> From: 
>>  On Behalf Of Steve Clark
>> Sent: Wednesday, 16 May 2012 9:49 AM
>> To: Sonja Ross; Birding Aus; 
>> Subject: Re: [Birding-Aus] Bass Straight migrants and poisonous Aussie
> birds
>> - birdng myths?
>> 
>> G'day Sonja and Anthea
>> 
>> Thanks for your replies.
>> 
>> I'm aware of the Gastrolobium poison bush in WA.  Anthea has turned up
>> this reference
>> 
>> http://www.publish.csiro.au/?act=view_file&file_id=MU942057.pdf
>> 
>> which is good evidence that the pigeons accumulate poison from the
>> seeds of Gastrolobium bilobum in Western Australia.
>> 
>> Further questions:
>> 
>> Has anyone ever extracted poison from a Bronzewing and analysed it?
>> What is the situation in other parts of the Bronzewings' range?
>> Why are Pitohuis claimed to be the first known poisonous birds?  This
>> article mentions others (including Bronzewings):
>> 
>> 
> http://nationalzoo.si.edu/Publications/ZooGoer/2001/2/intoxnewguineabirds.cf
>> m
>> 
>> It seems that others were known or suspected earlier but the chemical
>> in Pitohui poison was the first to be identified.
>> 
>> There appears to be no conclusive evidence that Flame Robins migrate
>> across Bass Strait unless Anthea can track down the unpublished
>> research of Balmford and Dennett.  I wouldn't be at all suprised if
>> they do cross the Strait but it would be nice to have evidence.
>> 
>> Cheers
>> Steve
>> ===============================
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