I saw my first two White-throated Needletails for this season this morning
while participating in a monthly bird survey at Eatons Crossing, SEQ.
They were following the upstream course of the South Pine River. The
co-ords were S27 20'53.0" and E152 56'35.8'
Saddened to read that the status of WTNTs is now declared as vulnerable.
--
Marie Tarrant
Kobble Creek, Qld
On 14 October 2015 at 07:20, Michael Tarburton <>
wrote:
> G'day Bird Enthusiasts
>
> Stephen Garnett has just informed me that the WTNT has been declared
> Vulnerable. Thank you all for helping to collect the data to make this
> declaration. Here are the details:
>
> White-throated Needletail Hirundapus caudacutus caudacutus
> Listed in Australia as Vulnerable A2b+3b+4b
> Evidence has been presented in Tarburton (2014) that there has been a
> decline in the migratory subspecies exceeding 30%. This decline has been
> corroborated using a number of independent data sources. It has been
> attributed primarily to habitat loss in the breeding grounds. Only
> Criterion A can apply as the subspecies occurs over too large an area for
> Criterion B, is too numerous for Criteria C and D and has not been modelled
> in a manner suitable for Criterion E. The rapid decline has been occurring
> over a long period so this probably counts as a correction to the 2010
> Action Plan, but listing probably could not be justified for 1992 or 2000.
> At this stage only criteria A2b+3b+4b apply - declines of 30-50% in 3
> generations (25.5 years) based on an index of abundance appropriate to the
> taxon. The suggestion that the decline is caused by habitat loss, though
> likely, is still a little speculative to warrant A2c.
>
>
> As a result of sending my last Annual report on WTNT, Alastair Smith has
> requested that I mention how many of my records come from eBird, so to be
> fair I have dug out all group resources and hope I have not missed any.
> These are the number of observations from each source – and of course there
> are many sightings reported in more than one location. Sources are (in
> alphabetical order):
> animalfineartbycheryl-ann.com (1), Bellingen Birders per Richard Jordan
> (12), Billandsuedownunder.blogspot.com.au/ (1), Biocache (10),
> Birding-Aus (44), BLAtlas (112), Birdlife Goldcoast per John Allsop (11),
> BL East Gippsland per Chris Healey (50), Birding NSW per Tom Wilson (1),
> Birdline & Birdline rejects thankfully sent on to me (118), Birds WA (1),
> Blue Mtns B.O. -Mark Ley (31), BQ per Brian Tynan (2), Cairns Birds (3),
> Canberra Birds/COG per Mark Clayton (17), Direct (1752), e-Bird (767),
> Eremaea Birdline (126), FSCB-Barbara Jones (36), geoffpark.wordpress.com
> (1), Hunterbirding (40), per other intermediary (172), The Twitcher per
> Alan Morris (21),
>
>
> Please have a great Swift season, & I look forward to receiving this
> season's results.
>
> Mike
> ===================
> Michael Tarburton
>
> ===================
>
>
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--
Marie Tarrant
Kobble Creek, Qld
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