What Gibson said.
I was going to say more gently that all those examples look pretty dubious, or maybe using 'feral' in a Latinate sense that's no longer very common. A definition like that might still exist in dictionaries, but learners of English should stick to the difference as described in #1.
Cuauh, as always, every time you do a web search for examples to dis
prove a point (which is provocative, but we know you), to be fair, you should do the same search for examples that prove
the point, and report the ratio between the two. Here, I bet that if you compared the numbers of examples for 'feral' in the sense that Selima, escoville, Gibson, and others have described, the percentage would vastly outweigh the few outliers you dug up.
For example, did you compare 'feral winds' with 'ferocious winds'? 'Feral lion' with 'ferocious lion'? 'Feral beast' with 'ferocious beast'? Do please report the numbers.
Other good collocations: a ferocious storm, ferocious battle, ferocious temper ...
A related question might be whether there's any significant difference between 'fierce' and 'ferocious.' I can't think of much, except that 'ferocious' might be a little stronger.
Uni-Leipzig is a good place to check collocations.http://corpora.informatik.uni-leipzig.de/cgi-...