Valkyrie wrote:
Scarecrows are probably the best excuse, ever invented, to use some of those
ugly bride's maid dresses . Most scarecrows are 'male' and don't have much
to blow in the breeze, the fluttering skirt of a really ugly taffeta and net
dress will do the trick for about 3 weeks........don't forget the fluttering
veil and ribbons on the hat! After that go to the Mylar ribbons and hanging
some of those free for 30 days computer discs that come in the mail to spin
in the wind. The flashing from those works great in fruit trees too.

Val
[...]

Birds become habituated to any type of scarecrow. Which means that if we
can prevent that habituation, the scarecrows will be successful. Suppose
we set up a new scarecrow before the birds become habituated to the
old one. Then replace the new one before the birds become habituated to
it, perhaps by the previous one, perhaps by a third type. And so on. My
guess is that this would work.

So:
Has anyone here tried a random sequence of different scarecrow types,
set up at randomised intervals of, say, 5 to 15 days? Or know of such an
experiment?

HTH