Maybe do Americans dress up as turkeys? In which case, uhm, the answer would probably be no. That's typically not done, at least not by normal people haha. I mean, stores might have a turkey costume available for employees to wear in order to drum up business. If you're asking if Americans wear turkey costumes on their own volition on Thanksgiving, I have to wonder where this priceless piece of information came from.
Little school kids might dress up as turkey for school plays before Thanksgiving. But not on Thanksgiving day, as that day is school holiday.
Not dressing as a turkey, making turkey noises and movements. I have seen it on TV shows and wondered if it were true. It seems a bit disrespectful as you are about to eat it.
Are all Brits Drunk all the time? Is the National language of Scotland drunk? Does everyone run around in masks on Guy Fawkes day? Don't answer that I know the answers but I felt the need to counter your question with some of my own. I guess the other example is how many people have a distorted view of Japan just from watching Anime.
Have you been watching shows where they HUNT turkeys? Because yes, they do that. Having been to the Edinburgh, I can certify, yes.
Well, it was a Brit who said to me "The National Language of Scotland is drunk" From Birmingham. I had a Snobby Rich friend who's part Scot and went to School at Saint Andrews, who got super offended when I told him that Scots were the Rednecks of Europe. Go through American history and indeed the term Redneck comes from Scots that settled in the Carolinas.
This was not meant as an attack on American culture or values, it was just meant as a lighthearted (possibly humorous) question. I have seen it in more than one TV programme and thought that, unlikely as it seemed, there must be something in it. And to counter your counter questions. I don't drink alcohol. I am English. I don't celebrate Guy Fawkes night as I am not a Royalist.
In response to the original question: there's no tradition (that I know of) that involves impersonating a turkey. If someone impersonates a turkey, it's just an isolated incident. I think the more important question is: would anyone really believe you?
Guy Fawkes was a conspirator in the gunpowder plot by English catholics to blow up the Houses of Parliament when the protestant King James II was present. The plot failed and Guy fawkes was caught and hung. Thereafter Guy Fawkes night (more commonly known as bonfire night) was celebrated by English protestants (who were loyal to the King), where an effigy of Guy Fawkes was burnt on a bonfire.
Let me re-word that. Nobody celebrates bonfire night for traditional reasons. Even so, 90% of public holidays are just an excuse to have fun and get drunk anyway.