Peadar na Breac's picture

Exiting stage left

Observed: 13th March 2011 By: Peadar na BreacPeadar na Breac’s reputation in BirdsPeadar na Breac’s reputation in BirdsPeadar na Breac’s reputation in Birds
ISPOT17.3.11 012
Description:

It's the bird on the left.

Identifications
Species interactions

No interactions present.

Comments

Peadar na Breac's picture

Ahhh I see

Ahhh I see. But am I right in saying that the Teal on the left is a native and the one on the right a migrant.There is quite a difference between the two.
Regards Peter

ophrys's picture

Not sure...

...quite what the difference is? Do you mean the clarity of markings on the head? I agree that the left hand bird lacks a clear pale border to the mask, which is part of what makes up a Green-winged, but could also be down to variety in a Common Teal. Otherwise, the difference is as Syrphus says. I am not aware that there is any real discernible difference between a British bird and an immigrant, to be honest.

Ian
_________________

My Flickr photos...

http://www.flickr.com/photos/52163027@N02/

Peadar na Breac's picture

Maybe it's....

... just me but the head colour and head markings look so different. I now totally agree with Syrphus regarding the body markings.But to me there is no burnt orange from front to back of head that the right hand bird has?

Syrphus's picture

The appearance of a Teal's

The appearance of a Teal's head varies enormously depending on light conditions and angle. Clearly the two birds look different, but they are in different conditions. If you enhance the image of the LH bird, you can see a partial pale outline to the green patch, and the contrasting brown/orange head. There is nothing in it that suggests anything other than a normal drake Teal, and nothing that suggests the American version.

M.

TRY

recording wildlife with The Recorder's Year on www.hbrg.org.uk/TRY.html.

Peadar na Breac's picture

Thanks...

... for the help M. No doubt I will jump to a wrong conclusion shortly,but hopefully not regarding Teal!!!

JonathanWallace's picture

Image display problem

When I click on the thumbnail to expand the image I just get part of the image displayed so that the right hand duck disappears entirely and only the tail of the left hand duck is visible. I am not able to pan within the image so I cannot examine either duck in sufficient detail to see the differences refered to by Peadar. I would agree with Syrphus' comments, though that the appearance of teal (and other ducks)heads does depend a lot on how the light strikes them. I also agree that apart from the differences between the carolinensis form and the European Anas crecca crecca, that have been described by Syrphus, there are no obvious plumage differences that differentiate between resident and migrant teal.

With regards to the image display issue described above is this possibly because I am using Firefox as my browser and Ispot is optimised for Internet Explorer?

Jonathan Wallace

Peadar na Breac's picture

I am afraid....

... that I am the wrong person to ask about computers or Teal for that matter!! But your own diagnosis of both issues sound correct to me.Thanks for your input.
Regards Peter

ophrys's picture

Enlarging

To see the pictures fully, once you have clicked initially to enlarge them, you then need to click on the text beneath the picture...then you get to see it in all its glory. I assume you were not doing so?

Ian
_________________

My Flickr photos...

http://www.flickr.com/photos/52163027@N02/

JonathanWallace's picture

Hmmm - that works! I do feel

Hmmm - that works! I do feel silly!

Jonathan Wallace