The BBC appears to have at least partially withdrawn their article about the parrot in question:
Note: This story about animal communication has replaced an earlier one on this page which contained factual inaccuracies we were unable to correct. As a result, the original story is no longer in our archive. It is still visible elsewhere, via the link below:
‘Parrot oratory stuns scientists’
I’m not aware of any journal articles for overcorrection and a quick Google search doesn’t turn any up. I’ll go bug my ornithology friends. In the meantime, here’s a BBC article that discusses the matter: http://web.archive.org/web/20060519061120/http://news.bbc.co.uk/2/hi/science/nature/3430481.stm . They give the example of N’kisis using “flied” for the past tense of “fly” rather than “flew.”
Edit: Fixed link. Edit: Link’s accuracy is questionable. See Mass Driver’s remarks below.
The link seems to be dead or misspelled.
Misspelled. Edited for correct link.
The BBC appears to have at least partially withdrawn their article about the parrot in question:
New BBC News Article
skeptic article about the parrot
Hmm, that’s very interesting. I think I’ve seen the overcorrection claim before but then definitely don’t have anything resembling a good citation.