For Dave, yes, you are right. Farmers have changed animal habitat so much it all had to move, so to the houses where people put food out for them. Rats will survive anywhere, as will mice etc. Birds are not so lucky as the hedgerows disappeared and so did habitat. magpies survive now around the houses, feeding on anything they find in the gardens and are also destructive pulling out under eaves weather protection materiel.
One thing that has always puzzled me is the fact that Mediterranean shooters kill small birds for the tongue only, mainly Skylarks ? Local Greeks I know shoot Starlings and barbecue them, yes, I know they are now a protected specie and the Greeks also know.
Farming policies are changing because of pollinating insects and now a lot of farmers leave a 20 meter strip on the edge of a field for wild flowers etc. With bee keeping there is problem with what is called, 'Monoculture' this causes problems with bees immune systems as they need, 'Multifloral' nectar to defend their immune systems. This was the cause of the CCD outbreak in the USA.
Clive