In I believe 2012 a study was done on the expanding Green Treefrog population that had recently "Jumped" the Delaware River and had shown up in Salem county and extreme western Cumberland county. Well it appears they have also jumped the Cohansey.Last night Whipoorbill did a thirty minute recording of which here is a snippet at Back Neck rd which would roughly be about here https://maps.njpinebarrens.com/#lat=39.37338202810728&lng=-75.32663125198366&z=15&type=nj2015&gpx= which makes them now much further east then at least we had heard them before.I know of Pine Barren Treefrog locations in the vicinity of Dividing Creek so their about to bump in to each other it seems.Now their habitat preferences may keep them apart.PB"s of course preferring bogs and cedar swamps though I have seen them in decidedly deciduous and more alkaline environments and the Greens like reed marshes and even brackish water so they my never meet.But if they do and hybridize what would it sound like? PB"s "Wonk" Greens "Wank" would the hybrids Wink? Wenk?Woonk?or Wunk? I present to you a Green Treefrog symphony conducted and recorded by Whipoorbill! PS there is also a Copes Grey Treefrog in there as well.