[NatureNS] Dunlin size, bill size variation and plumages illustrated

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Date: Fri, 30 Sep 2011 20:21:00 -0300
From: Rick Whitman <dendroica.caerulescens@gmail.com>
To: naturens@chebucto.ns.ca
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This could be a "bit much" for some and I apologize if it is. However, I
have to say I find it absolutely fascinating. Dunlins are a holarctic
species known to be variable in size and bill length. The linked series of
photos were all taken today, in one flock, and show just exactly what we can
run into as we try to identify shorebirds. I have 5 photos showing the more
or less standard non-breeding adult plumage, the beautiful juvenile plumage
with only about 3 feathers into the next phase, and the juvenile entering
first winter plumage. I use two photos each for the 2 juvenile plumages
because you need to see the Dunlin bill but I also want to use the absolute
best plumage photos.

I also show one photo with 2 Dunlin showing body size and bill size
variation. Consider, larger bird is to the rear, which would reduce
differences a little.

http://rickwhitman.smugmug.com/Nature/Birds-July-2011/17831138_m4NQwJ#1505700055_QrtW2XN

I thank Ian McLaren for correct terminology "entering first winter
(technically First Basic) plumage".

Rick Whitman

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This could be a &quot;bit much&quot; for some and I apologize if it is. How=
ever, I have to say I find it absolutely fascinating. Dunlins are a holarct=
ic species known to be variable in size and bill length. The linked series =
of photos were all taken today, in one flock, and show just exactly what we=
 can run into as we try to identify shorebirds. I have 5 photos showing the=
 more or less standard non-breeding adult plumage, the beautiful juvenile p=
lumage with only about 3 feathers into the next phase, and the juvenile ent=
ering first winter plumage. I use two photos each for the 2 juvenile plumag=
es because you need to see the Dunlin bill but I also want to use the absol=
ute best plumage photos.<div>
<br></div><div>I also show one photo with 2 Dunlin showing body size and bi=
ll size variation. Consider, larger bird is to the rear, which would reduce=
 differences a little.</div><div><br></div><div><a href=3D"http://rickwhitm=
an.smugmug.com/Nature/Birds-July-2011/17831138_m4NQwJ#1505700055_QrtW2XN">h=
ttp://rickwhitman.smugmug.com/Nature/Birds-July-2011/17831138_m4NQwJ#150570=
0055_QrtW2XN</a></div>
<div><br></div><div>I thank Ian McLaren for correct terminology &quot;enter=
ing first winter (technically First Basic) plumage&quot;.<br><br></div><div=
>Rick Whitman<br>
</div>

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