ub on ▁Society ▁to ▁support ▁the ▁nom ination ▁of ▁the ▁Green ▁P ond ▁area ▁as ▁an ▁Import ant ▁Bird ▁Area ▁( I BA ) ▁described ▁the ▁site ▁as : ▁ ▁" a ▁large ▁open ▁agricult ural ▁field ▁with ▁ 2 - 3 ▁de press ions ▁that ▁collect ▁water ▁during ▁most ▁of ▁the ▁year ▁and ▁becoming ▁dry ▁sometimes ▁during ▁summer ▁months . ▁It ▁is ▁fed ▁period ically ▁by ▁an ▁adjacent ▁six - acre ▁p ond ▁that ▁lies ▁across ▁the ▁rural ▁town ship ▁road ▁from ▁the ▁Green ▁P ond ▁Marsh ▁area . ▁The ▁so ils ▁have ▁been ▁exam ined ▁by ▁an ▁e colog ist ▁and ▁determined ▁to ▁be ▁hyd ric , ▁characteristic ▁of ▁wet lands . ▁In ▁recent ▁years ▁the ▁fields ▁are ▁plant ed ▁with ▁corn ▁and ▁left ▁fall ow ▁during ▁winter ▁and ▁spring . ▁Th ick ets ▁adjacent ▁to ▁fields ▁and ▁p ond ▁attract ▁wet - th icket ▁birds , ▁including ▁occas ional ▁black bird ▁f lock s ▁including ▁R ust y ▁Black bird . ▁The ▁Green ▁P ond ▁Marsh ▁is ▁a ▁premi ere ▁site ▁for ▁wet land ▁birds ▁in ▁eastern ▁Pennsylvania ▁with ▁large ▁numbers ▁of ▁shore bird s ▁and ▁water f ow l ▁using ▁the ▁shall ow ▁po ols ▁for ▁stop over ▁on ▁migration . ▁Records ▁of ▁concentr ations ▁date ▁back ▁to ▁ 1 9 7 0 s ▁but ▁they ▁may ▁have ▁occurred ▁over ▁a ▁longer ▁period . ▁Comp ared ▁to ▁other ▁p ond ▁or ▁lake ▁areas ▁in ▁the ▁region ▁it ▁appears ▁to ▁offer ▁a ▁unique ▁habitat ▁and ▁attract s ▁larger ▁concentr ations