Friends of Hill Hook Nature Reserve, put on conservation volunteering activities in conjunction with the Birmingham and Black Country Wildlife trust every 2 months.
The sessions runs from 9am-2pm, but of course you are free to come for as long or as little time you like. The meeting place is at the bridge, near the Netherstone Grove entrance to the Nature Reserve.
The nature reserve is literally a 5 minute walk from Blake Street trains station on the cross city line.