Guitarists - Your help please

[Frozzy]

I was watching some of the Fender 50th Birthday concert videos (since I play a Strat, it was rather interesting)

I came across this gem (http://www.youtube.com/watch?v=HqBUmYTjybE#)... but I have some queries.

What does he do to create that screeching sound at the end of the intro (at around 2:17)

And is he actually just using a whammy bar and no picking in the middle (5:10 onwards)

Cheers for your help

[phoenixcager]

Can't see clearly, but my guess is:

The first one seems to be harmonics of some sort.

The second one --it appears that there is a combination of tapping, and hammer/pull-offs