Wildlife Management

Don&Olive write:

A proto-,
sub-,
extra-,
or possibly non-garden wildlife management tip: 

Having been host to a front-porch-pillar robin's nest, a pergola-rafter robin's nest, 

a north-side-English-ivy grackle's nest, and a roof-corble sparrow's nest, 

when we saw yet another sparrow eyeing the top of a porch pillar, 

we decided to close the avian
neo-natal care center and
invented the FEAR 

(Fowl Expulsion and Aversion Routine) system
for discouraging further colonization. 
A big-hair Barbie doll also works.