Not a dig at you personally mate, but when this type of lurcher is mentioned on here, tons of posts like yours will be said, or very similar, 'make good little rabbit dog, or nice little bunny basher/lamper', etc. Facts are, many of these types can be extremely useful on all quarry, fur and feather. A couple of the better dogs I've owned have been exactly this type, grey/collie/whippet, no other blood, and took all sorts of quarry day and night. Seen same types owned by others do the same. Bear in mind though, no red deer were taken with them though lol.
Might possibly be a case of som