a question here, i whistle by mouth very often, all the time actually, and i can whistle pretty well too. Now, when i whistle something, no matter what it is (except classical music), i catch myself whistling all the tunes or or melodies “irish-style”, meaning, i put in taps, cuts, rolls, slides, etc. I make everything sound kind of irtrad. 
anyone else do that?
You’re a strange and complex fellow, Swiss-dood, and no mistake!
Does it carry over into your whistle playing in such a way that the ornamentation shows up without you having to move a finger?
unfortunately not, but i does help me decide where i want to add an ornamentation, which of course isn’t as easy doing it with my fingers as with my mouth.
the strange thing is, i am not good at making ornamentations by tongue on the whistle (well, like tonguing notes, all that other stuff that finnegan does) eventhough i do that very much when mouth-whistling.
life is full of riddles.
maybe i’ll add a mouth whistle-clip once on the clips and snips. 
I mouth whistle all the time. (Much to the annoyance of everyone around me.) When I’m whistling ITM stuff I stick in the ITM ornaments, but on other stuff I add in ornaments appropriate to the style. (Grace notes in classical, glissandos and accents in pep band, etc.)
you see gary, i’m not the only strange and complex fellow around here.
Not only do I insert the ornamentation, I’ve learned to whistle in tune! Before I could whistle notes that resembled the ‘true pitch’ the way a cartoon character resembles a real cat…but over 4 years of tin whistling, my mouth whistling tunes are recognizable.
I was going to start a thread on this on the flute forum. I’m a pretty good mouth whistler, and I was able to pick up flute playing pretty easily at least as far as getting a good solid tone. I imagine that since you use many of the same little muscles for flute playing as for mouth whistling, it might be good training.
Bob
When I whistle by mouth, I make strange sound effects that sound like fax machines.
Actually I do a number of sounds, including ornamentation. I think mouth sounds sound more like occarinas than whistles.
Bing Crosby could whistle really well…although he would croon his whistling rather than “Irish” his whistling.
Oh, and to answer the question, I can’t whistle a note :roll:
I whistle all the time, as well, am completely unaware that I’m doing it, and it’s pretty good. It’s likely the reason I live alone. 
It seems that I’ve been doing the Irtrad ornamentation since childhood, and have no idea where I learned it. Probably from my dad. Upon learning the flute and whistle ornamentation, I was surprised to see that it was something I already knew and . . . even more surprising, that it was something anyone would think to actually teach. (After all, doesn’t EVERYONE do it?)
Me too. I’ve been mouth whistling since I was a wee lad. It helps also in figuring out how I want to play something. It’s like having a portable built in instrument. Maybe we should start a mouth whistle band.
me too. i’ll join you.