I seem to remember reading that in the recent decades, there is a clear reduction in the number of large gulls in Germany due to the replacement of open landfills with less accessible (to gulls) methods of waste disposal.
I also remember an article (in "Falke", if my memory is...
I imagine you might get the best results with regard to non-invasiveness by using an infrared night vision device and an IR light.
Obviously, green or red light is not going to give a full colour impression of the owl anyway, so moving to IR shouldn't be too bad.
Of course, it's a...
I just received an email from the ornitho.de identification help, whom I also sent the above photograph, and they basically agree with you. They note that Long-legged Buzzard can almost certainly be excluded for structural reasons, while a young ssp. vulpinus can not be exluded...
Well, I guess it depends on what you consider "pre-agricultural" ... agriculture in Europe goes back at least 6000 years.
My impression is that there is no doubt that certain forms of agriculture have historically created large habitats for bird species compatible with them, and the...
I see a certain justification to your point.
My girl friend always carried a Leica 10x50, I a Nikon 8 x 42. My eyesight was better, so we were very evenly matched in our ability to identify birds. If we found a bird we both could not identify because it was a bit too far away, she handed...
.. and 59% for 8x/8.5x.
As double selections are possible, it might just be that the majority of 8x/8.5x fans like a 7x just as well - hypothetically, as it's not possible to tell for sure from the poll.
Well, personally I'd confidently rule out Common Buzzard and Kestrel at least.
Looking at the right wingtip in DSC1672, that seems consistent with a Goshawk or a Sparrowhawk.
However, I wouldn't dare to be confident in any positive identification I might attempt.
as Hermann wrote above,
"Later many people started using lower power binoculars, especially when more people started carrying a scope at all times.",
it would have been logical to set up the poll to test for this correlation.
I know it certainly influences how I think about binoculars...
The question "and whether you also use a scope (or scopes)" should have gone into the poll answers.
Like "8x and no scope" and "8x and scope" as separate tick boxes.
Your introductory text is quite good, but I fear the poll results will be too vague as the two potential clusters of...
Thanks a lot for the beautiful drawing! :-)
This one and the one on the photographs are really quite close to my bird, only the terminal band on the tail is not as pronounced as on the other birds. I noticed you remarked on that wide terminal band in your field notes, too!
Excellent, thanks! Do you know whether these variation ranges are regionally different? I'm fairly sure I've never seen one like that in Northern Germany, where I do most of my birding.
last Sunday, I took this picture of a buzzard near Cologne in Germany.
When it flew up to the branch it sits on in the picture, I noticed that the tail was a very warm brown. So I set up scope while the buzzard patiently waited, keeping an eye on me all the time :-)
I'd guess that the cost of fixing them would be uneconomic when it's perfectly possible to sell them as is.
Partially, that's due to the fact that few customers are able to determine the actual quality of their scopes in relation to the potential of the design.
I wonder if minor misaligments of the adapter might be able to introduce additional artifacts that show shortcomings of the phone lens rather than those of the scope.
Might be irrelevant in practice, but I thought I'd maybe bring up this question for the experts :-)