Pink/Red colouration of legs and bill of Pied Oystercatchers

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Pink/Red colouration of legs and bill of Pied Oystercatchers

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Subject:	Pink/Red colouration of legs and bill of Pied Oystercatchers
From:	"Bob Moffatt" <>
Date:	Sat, 29 Jul 2006 09:38:56 +1000

can anyone suggest the function/purpose of the contrasting red colouration of 
legs and bills of Oystercatchers, and for Pied Stilts for that matter??

Thanks
Bob Moffatt
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