[NatureNS] Glaucous X Great Black-backed Gull and Barred Owl

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From: Richard Stern <sternrichard@gmail.com>
Date: Thu, 11 Mar 2010 21:36:37 -0400
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Hi Hans,

Very nice pictures. On all the ones of the gull, the 1st c. GBB pattern on
the wings and undersides is quite apparent, and I should have noticed that
more obviously on the 1st picture. I agree that 1st c. GLAG x GBBG is the
most likely ID, but of course hybrids can be notoriously hard to sort out in
terms of true parentage. There was some data published somewhere recently,
and I forget exactly where, showing some warblers that looked perfectly
typical of a given species, but DNA analysis showed that they were in fact
hybrids, with phenotypic expressions of just 1 parent.

Thanks for the thought-provoking observation.

Richard

On Thu, Mar 11, 2010 at 7:52 PM, Hans Toom <Htoom@hfx.eastlink.ca> wrote:

>  At this point the consensus is that the mystery gull at Sambro Harbour is
> a hybrid, *Glaucous X Great Black-backed Gull*. I've posted four more
> photos including a close-up study of the primaries.  The gull though not shy
> just sat on a post and didn't move around much when I photographed it. I
> confess to not noticing the dark spots under the tail.  I should use a
> checklist when I study a bird so I don't miss any clues and parts.
>
> I've also posted some photos of the *Barred Owl* from Oakfield Provincial
> Park from this morning.  All the photos are taken hand held which is another
> lesson learned. I should have brought my tripod since I knew that I
> was going to be photographing owls in the deep and shady forest.
>
> Hans
>
> http://www.hanstoom.com/Highlights/March2010/0121.html
> _________________________________
> Hans Toom
> Portuguese Cove, Nova Scotia, Canada
> Website: http://hanstoom.com
> _________________________________
>



-- 
#################
Dr.R.B.Stern,
P.O. Box 300,
Port Williams,
N.S., Canada,
B0P 1T0

Richard Stern,
317 Middle Dyke Rd.
Port Williams, NS, Canada
B0P 1T0

sternrichard@gmail.com
###################

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Hi Hans,<br><br>Very nice pictures. On all the ones of the gull, the 1st c.=
 GBB pattern on the wings and undersides is quite apparent, and I should ha=
ve noticed that more obviously on the 1st picture. I agree that 1st c. GLAG=
 x GBBG is the most likely ID, but of course hybrids can be notoriously har=
d to sort out in terms of true parentage. There was some data published som=
ewhere recently, and I forget exactly where, showing some warblers that loo=
ked perfectly typical of a given species, but DNA analysis showed that they=
 were in fact hybrids, with phenotypic expressions of just 1 parent.<br>

<br>Thanks for the thought-provoking observation.<br><br>Richard<br><br><di=
v class=3D"gmail_quote">On Thu, Mar 11, 2010 at 7:52 PM, Hans Toom <span di=
r=3D"ltr">&lt;<a href=3D"mailto:Htoom@hfx.eastlink.ca">Htoom@hfx.eastlink.c=
a</a>&gt;</span> wrote:<br>

<blockquote class=3D"gmail_quote" style=3D"border-left: 1px solid rgb(204, =
204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><div><div></div><=
div class=3D"h5">





<div bgcolor=3D"#ffffff">
<div><font face=3D"Arial" size=3D"2">At this point the consensus is that th=
e mystery=20
gull at Sambro Harbour is a hybrid,=A0<b>Glaucous X Great Black-backed=20
Gull</b>. I&#39;ve posted four more photos including a close-up study of th=
e=20
primaries.=A0 The gull though not shy just sat on a post and didn&#39;t mov=
e=20
around much when I photographed it.=A0I confess to not noticing the dark=20
spots under the tail.=A0 I should use a checklist when I study a bird so I=
=20
don&#39;t miss any clues and parts.</font></div>
<div><font face=3D"Arial" size=3D"2"></font>=A0</div>
<div><font face=3D"Arial" size=3D"2">I&#39;ve also posted some photos of th=
e <b>Barred=20
Owl</b> from Oakfield Provincial Park from this morning.=A0 All the=20
photos are taken hand held which is another lesson learned. I should have=
=20
brought my tripod since I knew that I was=A0going to be photographing owls =
in=20
the deep and shady=A0forest.</font></div>
<div><font face=3D"Arial" size=3D"2"></font>=A0</div>
<div><font face=3D"Arial" size=3D"2">Hans</font></div>
<div><font face=3D"Arial" size=3D"2"></font>=A0</div>
<div><font face=3D"Arial" size=3D"2"><a href=3D"http://www.hanstoom.com/Hig=
hlights/March2010/0121.html" target=3D"_blank">http://www.hanstoom.com/High=
lights/March2010/0121.html</a></font></div>
<div><font face=3D"Arial" size=3D"2">_________________________________<br>H=
ans=20
Toom<br>Portuguese Cove, Nova Scotia, Canada<br>Website: <a href=3D"http://=
hanstoom.com" target=3D"_blank">http://hanstoom.com</a>=20
<br>_________________________________</font></div></div>
</div></div></blockquote></div><br><br clear=3D"all"><br>-- <br>###########=
######<br>Dr.R.B.Stern, =A0 <br>P.O. Box 300,<br>Port Williams,<br>N.S., Ca=
nada,<br>B0P 1T0<br><br>Richard Stern, <br>317 Middle Dyke Rd.<br>Port Will=
iams, NS, Canada<br>

B0P 1T0<br><br><a href=3D"mailto:sternrichard@gmail.com">sternrichard@gmail=
.com</a><br>###################<br>

--005045013c18228f8a0481909143--

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