Shotgun Mic, or Parabolic Reflector? Opinions, Please.

["scratchpaws" scratchpaws]

I have a Sony PCM D50 Linear PCM Recorder.

I want to record "clean" wind in the top branches of trees with as little a=
mbient noise as "reasonably" possible.

The on-board mics pick up too much ambient noise to give me the "specific r=
ustle" of wind noise in the leaves at ground level, without the "general ro=
ar" of wind coming from everywhere around me. I'm thinking the tops of tree=
s would offer the best of what I'm looking for.

Does anyone have any input as to a good mic configuration for this?
I assume either a shotgun or a parabolic reflector, however, words of wisdo=
m from the gurus would be most appreciated before I go off spending a lot o=
f money burning daylight to find a solution.

Thanks