On Tue, 28 Apr 2009 18:23:50 -0700 (PDT), Joe
wrote:

On Apr 28, 4:45Â*pm, wrote:
Â*Make ONE opening into the second floor cavity from outside.. Soak
some rags in ammonia and stuff them in the hole as far as you can
shove them with a broom stick, or whatever. The critters WILL come
out.

Will that run the G*@#$% shrews out of my upstairs knee wall? Un
fortunately even if it would there is no practical way to seal them
out.
Keep an open bottle of ammonia up there for a while and they will
PERHAPS get the idea that it's not a good place to hide.