Here is a video from the dig yesterday centered on the first massacre site visited by Winnington 70 years ago. The soil is very acidic, so after 70 years the remains are in pretty bad condition. I have included pictures of what has been found so far as well.
It's not possible to see from the video itself, but behind the JCB is the church under which the 'pit' curves and continues for quite some time. This will be demolished later in the month so that the excavation can continue in the assumed direction.
The circles made in chalk surround areas where remains have been found. The soil contains many rocks that were included when the trench was back filled, so usually it is necessary to remove these in order to access the remains underneath. It is very time consuming work, and some of those involved are volunteers.