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Thread: double pupil

  1. 03-24-2010, 05:27 PM #1
    Jared Lloyd
    Jared Lloyd is offline
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    Default double pupil

    Ive searched all over the net for this but to no avail. Does anyone know anything about the double pupil of an oystercatcher?
    thanks,
    Jared
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  2. 03-24-2010, 05:31 PM #2
    William Malacarne
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    Try here and there are a few other links within the thread.

    http://www.birdphotographers.net/for...ad.php?t=45547

    Bill
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  3. 03-24-2010, 07:44 PM #3
    John Chardine
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    Thanks for pointing to the thread Bill. So Jared, we really don't have a double pupil but just an illusion of one caused by dark pigmentation of the surrounding iris.
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  4. 03-25-2010, 09:34 PM #4
    Axel Hildebrandt
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    Here is another thread about this: http://www.birdphotographers.net/for...ad.php?t=15001
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