It could be recorded via a digi cam.
On 09/01/2011, at 12:23 PM, Tony Russel wrote:
Hang on Laurie - If a vagrant turns up and no-one twitches it, how
might we
know that it was ever there ??
<snip>
Tony
-----Original Message-----
From:
On Behalf Of Laurie Knight
Sent: Sunday, 9 January 2011 12:08 PM
To: Dave Torr
Cc: Birding Aus
Subject: Re: [Birding-Aus] Cocos & Christmas Island Rarities
Or do you mean "if a vagrant turns up and no-one twitches it, was it
really there?". More to the point, "if a vagrant turns up and no-one
twitches it, does anyone really care?"
The big question for the twitcher might be "if a vagrant turns up and
BARC doesn't accept the observation, can I add it to my list?" ;)
LK
On 09/01/2011, at 11:25 AM, Dave Torr wrote:
It has always struck me as a little strange that a vagrant that
turns up once is added to the list, yet a bird that goes extinct is
removed from the list. Perhaps if a vagrant does not turn up again
for (say) 50 years it should also be removed from the list? There is
also the interesting question of how often does a vagrant have to
come before it ceases to be a vagrant? And - to be really
philosophical - if a vagrant turns up and no-one twitches it then
does it exist???
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