Seven apparently! Plus two rotavators, two compactors and a mini-digger!
After the successful construction of our prototype sand martin bank earlier this year, the sandinyoureye team are back.
This time they're working in collaboration with contractors Paul and Mark Afford to create the real thing.
Sand martins have already been seen back in the UK this month after spending the winter in Africa. So, let's hope that they approve of all the hard work!