Primary confusion

To: Mike Carter <>, L&L Knight <>, Birding Aus <>
Subject: Primary confusion
From: Nikolas Haass <>
Date: Sat, 12 Apr 2008 17:31:26 -0700 (PDT)
'Primary projection' means distance beyond the tertials - correct
But the distance beyond tail is the 'wing projection' (given the wing is longer 
than the tail)
If the tail is longer than the wing there is a 'tail projection'


Nikolas Haass

Sydney, NSW

----- Original Message ----
From: Mike Carter <>
To: L&L Knight <>; Birding Aus 
Sent: Sunday, April 13, 2008 10:21:26 AM
Subject: Primary confusion

'Primary projection' particularly usually means distance beyond the tertials 
but may also refer to distance beyond tail.

Mike Carter
30 Canadian Bay Road
Mount Eliza  VIC 3930
Tel  (03) 9787 7136

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