Is it actually the angle, or just the nictitating membrane?
Peter Shute
Sent from my iPhone
> On 24 Feb 2016, at 4:05 PM, Bill Stent <> wrote:
>
> I was wandering around Banyule Swamp this morning when I found a Kookaburra.
>
> Taking some photos I noticed that when the bird's head was turned at a
> particular angle the eyes looked clouded, but on a different angle they
> appeared clear (see attached photos).
>
> Does anyone know what this is? Is it an optical thing, related to the
> efficiency of the eyes, or something else?
>
> Bill
> <IMGP3916KookaburraCrop.jpg>
> <IMGP3920KookaburraCrop.jpg>
> <HR>
> <BR> Birding-Aus mailing list
> <BR>
> <BR> To change settings or unsubscribe visit:
> <BR> http://birding-aus.org/mailman/listinfo/birding-aus_birding-aus.org
> </HR>
<HR>
<BR> Birding-Aus mailing list
<BR>
<BR> To change settings or unsubscribe visit:
<BR> http://birding-aus.org/mailman/listinfo/birding-aus_birding-aus.org
</HR>
|