A spring activity to build boxes for nesting tits. Scouts can then report back as to the success of their boxes and keep up to date with BBC Springwatch to see how their families should be coming along.
Adapt some of the badge criteria suggested below to suit for this project
drill (for the hole),
Follow the instructions from http://www.bbc.co.uk/breathingplaces/nest_box/, cut out and build then place the box on a wall with no ledges or fences anywhere close (anything a cat could get on and get to the box from)