birding-aus

To tick or not to tick, that is the question

To: "'David Robertson'" <>, "'Birding-Aus'" <>
Subject: To tick or not to tick, that is the question
From: "Paul Dodd" <>
Date: Fri, 28 Mar 2008 19:17:28 +1100
I have to admit that there's something I don't really understand -

We'll rush to see and tick a vagrant that makes it to our shores supposedly
under its own steam - and that "counts" as a tick. However, we can't tick
the House Crow in case it was ship-assisted.

Furthermore, we can't tick feral populations unless they have established
self-sustaining breeding populations for at least ten years.

I'll play by the rules, but they do seem somewhat arbitrary...

Paul Dodd
Docklands, Melbourne


-----Original Message-----
From: 
 On Behalf Of David Robertson
Sent: Friday, 28 March 2008 12:28 PM
To: Birding-Aus
Subject: To tick or not to tick, that is the question

Instead of one list, opne could adopt that used in the UK and adopted by
Hong Kong:
Category A    Species which have been recorded in an apparently wild state
in Hong Kong (Australia) within the last fifty years,
Category B    Species which have been recorded in an apparently wild state
in Hong Kong (Australia), but not within the last fifty years. (? Paradise
Parrot)
Category C    Species which, although originally introduced by man, have now
established a regular feral breeding stock which may or may not be
self-supporting.
Category D     Species which have occurred in an apparently wild state but
for which the possibility or escape or release from captivity cannot be
satisfactorily excluded.
Category E    Species for which all published records are suspected of being
birds which have escaped or have been released from captivity.
Category F     Species for which all published records must be regarded as
doubtful because of the possibility of mistaken identity.
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