Quick learner - SLOW forgetter(s)

Some time ago, we visited a walled garden "up over" as one of my ex-colleagues used to refer to Scotland.
While filling our faces we sat next to a window replete with a stuck-on bird-feeder, and several in a nearby tree.
"Shall we give one a try?"
" Aye! Y knot?"
So we did - - - - ONCE.
They will NOT bear the weight of a Pidjin, (or 2).
Now trying the front window. The little 'uns have yet to find it BUT more importantly ... neither have the big 'uns.
:¬))
However that one event has given them the idea that there MAY just be a bit of scran on the window cill.

Sorry about the state of the grass, we're in mid tidy.
:¬((