Okay, I'll mop up, but only if wienergriessler or Igelin will do the next riddle, because I honestly had No. Idea., even when the category was already narrowed down to farm-raised birds. (!)
I cannot tell you how much time I spent wandering down the wrong track, aka the garden path, looking for the wrong chicken, aka red herring.
I had this (admittedly lame) theory that the Huhn could have been named after Attila the Hun, and/or that Gallus gallus might conceivably have something to do with the Gauls and Gallia omnia in tres partes ... Unsurprisingly, I found no support for any of that, so I kept looking up other words in other languages, and wondered about all sorts of other mysterious etymologies ...
Fr. coq, poule
Pol. kura, kur
Croatian (hrvatski) kokoš
Greek όρνιθα, κότα, αλέκτωρ, πετεινός, κόκορας, κοτόπουλο (???)
But, moving right along.
turkey (Meleagris gallopavo) ...
(< continent D, North America)
According to linguist Mario Pei, there are two possible explanations for the name turkey. One theory is that when Europeans first encountered turkeys in America, they incorrectly identified the birds as a type of guineafowl,
( > continent A, Africa)
which were already being imported into Europe
(= continent C)
by Turkey merchants via Constantinople
(= continent B1, Asia / Turkey)
and were therefore nicknamed Turkey coqs (Middle Eastern merchants were called Turkey merchants as much of that area was part of the Ottoman Empire at that time). The name of the North American bird thus became turkey fowl or Indian turkeys, which was then shortened to just turkeys.
A second theory arises from turkeys coming to England not directly from the Americas, but via merchant ships from the Middle East, where they were domesticated successfully. Again the importers lent the name to the bird; hence Turkey-cocks and Turkey-hens, and soon thereafter, turkeys. ...
Other European names for turkeys incorporate an assumed Indian origin,
(= continent B2, Asia / India)
such as dinde ('from India') in French, индюшка (indyushka, 'bird of India') in Russian, indyk in Polish and Ukrainian, and hindi ('India') in Turkish. These are thought to arise from the supposed belief of Christopher Columbus that he had reached India rather than the Americas on his voyage.
In Portuguese a turkey is a peru; the name is thought to derive from the country Peru.
(= continent E, South America? (-; )