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Sorry JAG, you are wrong.
You have a big lapse in logic in writing:
"bird deaths caused by an unnatural event such as being snared by a
longline or snared in a tree due to being trapped by a legband are NOT a NATURAL
event and therefore will not appear in the databases of those that
snare".
Your use of the word "therefore" is
wrong, there is no connection between these statements. By my reading of the
bander's manual (admittedly an old 1989 version) it is quite clear that all
records should be kept that include any mortality arising from the activity or
any other cause and that there are a set of codes to record this. There was even
a code for "bird died before banding" a rather obscure case as in why
would you then band it? It was presumably added so that all possibilities could
be included. Therefore any such events should "appear in the
databases of those that snare." I am referring to banders, not to longline
fishing bycatch which clearly is a problem. (Also clearly that any actions
likely to cause it should not be used). Anti banding writings on this line long
ago got rather boring and have run their course and have rarely been convincing,
compared to the value for conservation and research that such methods
achieve.
p.s. I don't know what the subject line "a wager" is
about.
Philip
-----Original Message-----
From:
Penn Gwynne <>
To:
Andrew Taylor <>
Cc:
Birding Aus <>
Date:
Tuesday, 13 May 2003 11:50
Subject: Re: [BIRDING-AUS] Re: A
wager ... cowardly exit by Dean
G'day Andrew, bird deaths caused by an unnatural event such as being
snared by a longline or snared in a tree due to being trapped by a legband
are NOT a NATURAL event and therefore will not appear in the databases
of those that snare. How can they appear? so the data being used is very
flawed and dare I say lopsided? an informed guess~timate at
best is made. That's my beef, how incorrect the assumed death rates are
from banding.
etc..................................................................
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