This mystery lark was photographed in north-east France recently by Christian Dronneau - opinions welcome.
Christian Dronneau contacted me via the WestPalBirds Yahoo group to solicit opinions on this lark, which was photographed in north-east France on 28 December 2010. Unfortunately it's not possible to share the image directly on the group, so as group owner I'm posting it here on his behalf - I can't promise to do this for all mystery birds, but this one could make an interesting topic for discussion.
Any ideas? If so, please post a comment here, and in due course replies will be cross-posted back to WestPalBirds.