On Sun, 20 Nov 2016 09:39:22 +0000, Nightjar
wrote:


They do work, but you need to place them where the mice run. If there is
no obvious run, a good place is along the base of a wall.

In a loft with insulation it can be right awkward to find them.
I found using one of those wildlife cameras sometimes called trap or
trail cameras very useful in finding where the pests moved about and
what their timetable was.
it shortened the time down to finding where they were gaining access
considerably so it could be blocked.

As I have two cameras one inside the loft showed roughly where a rat
was coming in and placing the other camera in the gutter pinpointed
the spot.
I dispatched that one as it came outside using air rifle then filled
the hole in the eave with foamed in wire wool.

G.Harman