The ovenbird, one of the forest interior breeding birds that relies on spaces like Papermill Woods
On February 21, 2017, the Trust purchased an important, 5-acre woodland in Bryn Athyn and added it to the Pennypack Preserve. This forested tract along Paper Mill Road near Cathedral Road is ecologically significant because it expands and buffers Papermill Woods, the largest block of intact forest in the preserve. It safeguards breeding habitat for declining birds that need deep, sheltered forest like Scarlet Tanagers, Wood Thrushes, and Ovenbirds. This addition brought the preserve to 828 acres.