[nightshade]

Originally Posted by Hornbeam

Yes I'm looking at my corridors and am using Google Earth. It is patchy but I am fortunate that my area is well covered and in sharp focus . The big advantage of aerial photos over a map is that the gardens appear green instead of whatever colour mapmakers assign to built up areas. The sheer amount of green is astonishing and the unofficial "woodland" of field edges, street trees and waste land (even some factory sites) does give a better idea than a map can. Railways, canals, footpaths, blocks of gardens, cemeteries, parks, golf courses are of greater wildlife value than the massive arable fields in my area. With official nature reserves sometimes little more than green museums isolated from one another like oasis in vast green agro-chemical deserts - our unofficial green habitats are of utmost importance and deserve study and protection.

How do animals move around and what happens to them if the corridors are blocked or destroyed?

This is why I think mapping out the corridors is so important,the link can be demonstrated if a development threatens any part of it.People can demonstrate that the area is a part of a larger habitat