[NatureNS] Shorebirds at Three Fathom Harbour

Date: Mon, 02 Jul 2007 11:28:29 -0300
From: Susann Myers <myerss@eastlink.ca>
To: naturens@chebucto.ns.ca
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I was atlassing in Cape Breton recently, so missed the start of shorebird migration at Three Fathom Harbour, HRM.  It is now clearly underway, however.  Yesterday (July 1) at Shorebird Cove were:

Lesser Yellowlegs - 52
Short-billed Dowitcher - 17, mostly of the hendersoni sub-species that can look very much like Long-billed Dowitchers

There were also Willets, Spotted Sandpipers and Killdeer.  One Killdeer spent quite a bit of time feeding on newly-exposed mud at the cove, using the "foot-trembling" technique to find prey.  I had read about this, but had never been close enough to watch it.  The Killdeer placed one foot in front of the other on the surface of the mud and "trembled" it slightly back and forth.  This apparently causes the prey to move and become more conspicuous, which helps because Killdeer find their food visually, rather than by probing.  It must work, as the Killdeer was enjoying good feeding.  It alternated feet, trembling first with one and then the other, and kept it up for quite a while.  I was forced to take a nice long break from gardening chores, to make certain of this!

Cheers,
Susann

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<DIV><FONT face=Arial size=2>I was atlassing in Cape Breton recently, so missed 
the start of shorebird migration at Three Fathom Harbour, HRM.&nbsp; It is now 
clearly underway, however.&nbsp; Yesterday (July 1) at Shorebird Cove 
were:</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV>
<DIV><FONT face=Arial size=2>Lesser Yellowlegs - 52</FONT></DIV>
<DIV><FONT face=Arial size=2>Short-billed Dowitcher - 17, mostly of the 
<EM>hendersoni</EM> sub-species that can look very much like Long-billed 
Dowitchers</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV>
<DIV><FONT face=Arial size=2>There were also Willets, Spotted Sandpipers and 
Killdeer.&nbsp; One Killdeer spent quite a bit of time feeding on newly-exposed 
mud at the cove, using the "foot-trembling" technique to find prey.&nbsp; I had 
read about this, but had never been close enough to watch it.&nbsp; The 
Killdeer&nbsp;placed one foot in front of the other on the surface of the mud 
and "trembled" it slightly back and forth.&nbsp; This apparently causes the prey 
to move and become more conspicuous, which helps because&nbsp;Killdeer find 
their food visually, rather than by probing.&nbsp; It must work, as the 
Killdeer&nbsp;was enjoying good feeding.&nbsp; It alternated feet, trembling 
first with one and then the other, and kept it up for quite a while.&nbsp; I was 
forced to take a nice long break from gardening chores, to make certain of 
this!</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT>&nbsp;</DIV>
<DIV><FONT face=Arial size=2>Cheers,</FONT></DIV>
<DIV><FONT face=Arial size=2>Susann</FONT></DIV></BODY></HTML>

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