Join Tim Eaton-Walker from Calderdale Bird Conservation Group and Hugh Firman, Conservation Officer, at Derby Delph Quarry (on the A672, 2.5 miles south-west of Ripponden, just above the boarding kennels grid reference SE018161) at 19.15 for a 2 hour moorland walk looking for the birds , such as Twite, Peregrine and Merlin, that make the South Pennines so special.  Donations welcomed to Calderdale Bird Conservation Group. No dogs.