On Thu, 29 Aug 2013 20:36:28 +0100, Jake
wrote:

On Thu, 29 Aug 2013 20:07:35 +0100, rbel wrote:

Before I saw the estimated width my immediate reaction was badger
scrapes. The spoil pattern is very similar to those I have seen, but
the width is more like 4 cms. Solitary bees and the green woodpecker
tend to make holes of the size you indicate but there is little or no
spoil pattern, usually just a small divot in the case of the
woodpecker.

Badger? A relatively isolated bit of disturbance. This pic is of one
night's activity by one badger. The area extended to about 25 square
feet.

http://www.rivendell.org.uk/gallerie...156&fullsize=1


I have seen that sort of activity on several occasions but I have
frequently encountered just one or two scrapes or snuffle holes in
quite a large area.
--
rbel