birding-aus

Ravens and golf balls

To:
Subject: Ravens and golf balls
From: Paul Taylor <>
Date: Tue, 03 Jun 2003 18:19:55 +1000
Carol Probets wrote:
>
IF, as has been suggested, the ravens are taking the golf balls
> because of their resemblance to eggs, the answer is simple.
[snip]

A resemblance to eggs is plausible for white golf balls, but
fluorescent-coloured golfballs?!

I'm surprised they take yellow golfballs, since yellow is often a
warning colour.  Perhaps drawing black lines on a yellow golfball
would be a more effective "threat" display.  (Red may also work,
but it would be harder to find the ball against a green background
- partly because of red/green colour-blindness, but also because
red appears dark in green light.)

-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
   Paul Taylor                           Veni, vidi, tici -
                    I came, I saw, I ticked.


Birding-Aus is on the Web at
www.shc.melb.catholic.edu.au/home/birding/index.html
To unsubscribe from this mailing list, send the message
"unsubscribe birding-aus" (no quotes, no Subject line)
to 


<Prev in Thread] Current Thread [Next in Thread>
Admin

The University of NSW School of Computer and Engineering takes no responsibility for the contents of this archive. It is purely a compilation of material sent by many people to the birding-aus mailing list. It has not been checked for accuracy nor its content verified in any way. If you wish to get material removed from the archive or have other queries about the archive e-mail Andrew Taylor at this address: andrewt@cse.unsw.EDU.AU