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canberrabirds
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To: | "'Bob Rusk'" <>, "'Chris Davey'" <>, "'Sue Lashko'" <>, "'Paul Fennell'" <>, "'canberrabirds chatline'" <> |
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Subject: | Counting C Myna in GBS |
From: | "Philip Veerman" <> |
Date: | Tue, 4 Jun 2013 14:06:17 +1000 |
Hi
Bob,
I think you missed my earlier message from Sunday, quoting the GBS
instructions that date back 20 years. Which was a clarification (I designed
after discussions with others) to avoid the vagueness of the instructions
of V1 & V2 of the GBS charts. "USE of the garden is explicitly not a criterion for counting for the GBS." Obviously and before
anyone asks, that does not mean that birds that use the garden are
excluded, it means that there is no need for the survey participant to even
consider whether or not the birds present in the area are "using" the area.
This is simply because such thought hopefully avoids survey
inconsistencies in which different people might have different ideas on what is
meant by the word "use" and it overly complicates the survey method to need to
decide on this issue, when at the end of each week you are already considering
multiple counts of multiple species on multiple days.
In any case in your question, the bird was free living and alive
there (before it died or in Paul's question before it was trapped) that is
good enough. If however there is reasonable expectation that a bird found dead
could or is likely to have been transported there after dying, by
hurricane, storm water, human transport or some predator and it is not
beyond reasonable doubt that it had been alive there, then I would be inclined
to leave it out of a GBS record. But as we are asking about a common bird of
which others surely are in the area anyway, what does it matter? Also if one
finds a dead bird that could have been dead for weeks or months and can be
identified by feathers or skeletal features but too difficult to know what week
it would have been present alive in the area, I would not include it on GBS. But
surely for one to even bother asking the question, it would need to be a rare
species and there are better ways to retain that information if it is.
Philip
-----Original Message-----
From: Bob Rusk [ Sent: Tuesday, 4 June 2013 7:30 AM To: Chris Davey; 'Sue Lashko'; 'Paul Fennell'; 'canberrabirds chatline' Subject: Re: [canberrabirds] Counting C Myna in GBS What happens if the bird
never actually had time to use the garden but only died there ? and then
where the gardens only use was to bury it there?. Its a tricky one to answer so over to you
Philip.
Bob
From: Chris Davey
<>
To: 'Sue Lashko' <>; 'Paul Fennell' <>; 'canberrabirds chatline' <> Sent: Sunday, 2 June 2013 2:20 AM Subject: RE: [canberrabirds] Counting C Myna in GBS The
count is about the birds that use your garden. Birds can use a garden in
all sorts of ways. If it happens to use it to die then it still gets
counted.
Chris
From: Sue
Lashko [
Sent: Sunday, 2 June 2013 9:55 AM To: Paul Fennell; canberrabirds chatline Subject: Re: [canberrabirds] Counting C Myna in GBS It was alive and in the GBS when trapped - no
different from you seeing a bird in the GBS and then the cat eating
it! Sue On Sun, Jun 2, 2013 at 9:44 AM, Paul Fennell
<> wrote:
Hi everyone
To me, this is akin to Schrödinger’s cat, but
with a practical aspect.
I one traps a Myna bird and disposes of
it. Does it appear on the GBS Chart as a one or a zero?
Cheers
Paul
Paul Fennell
Editor Annual Bird Report
COG Databases
Manager
026254 1804
0407105460
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