is this the right name for rock doves or common pigeons that you see in farmland?
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I agree with weekender; but the same scientific name is shared by the two, so the common name is less important than Columba livia.
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I think it would be best to put these down as Feral pigeons Columbia livia as they show plumage forms that are clearly not the wild form. Such an approach allows the distribution of the wild form to be more clearly mapped.
Although I agree with you weekender (and until relatively recently so did the rest of the ornithological world) my understanding is DNA analysis has shown rock/feral dove/pigeon to be identical and are not now differentiated.
While Rock Doves and Feral Pigeons may not be separable at a specific level using certain DNA analyses there are clear phenotypic differences and the different genetic characteristics have been exploited / manipulated by pigeon fanciers for decades. Consequently there must be some genetic differences, even if they are not separable at a specific level. There is probably still some conservation merit in recording the distribution of the wild form as I understand that internationally wild forms are now relatively rare.
... actually agree with you and weekender David indeed I said something very similar in an observation some time ago. My comment above is a paraphrased version of what was said to me in reply, I’ll try and find that observation if I can.
While it is entirely true that (wild) Rock Doves and Feral Pigeons are both a single specie, when there are distinct 'forms' within a species it can make sense to differentiate between them.
When geographical subspecies, or races, are concerned we usually distinguish between them using a 'trinomial' scientific name, but this type of name is not normally given to domestic breeds (although Feral Pigeons are sometimes referred to as Columba livia domestica, or Columba livia form. domestica.
In this case I would agree that Feral Pigeons and wild Rock Doves can readily be separated by the specific use of the different English names.
The scientific name does need to be correct though - which is why I have added the new revision (giving the identification as Feral Pigeon, Columba livia. In reality though it's not really of major importance how these are named - but we do need to recognise that they are the same species as wild Rock Doves.
It's a pity thet these are all lumped together - wouldn't it be nice to know how many "wild" Rock Doves are spotted - or is ID very difficult?
A lichen ménage à trois - http://science.sciencemag.org/content/353/6297/337
Some say it's time to throw the textbook understanding of lichens out the window.
"Now there will be more chaos, more confusion in lichenology ,...."
Some of the birds in Trafalgar Square, and every town through Britain, pretty much, are identical to birds on the north coast of Scotland, so differentiation of the two is impossible. Even in the very north, there are feral birds amongst the wild ones, so how many remain pure is difficult to say.
Lat/Lng: 52.959568888889, 0.082276111111111
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