Green Tree-frogs at Snaresbrook?

The account below of Green Tree-frogs in Snaresbrook was taken from 'The Essex Naturalist', Vol.1. 1887

It is suggested that the species may have been Hyla arborea, the European Tree-frog, which is native to Europe excluding Britain, Ireland, Spain and Portugal. The Editors' comments are interesting: they don't seem to have persisted!

Locally, we only seem to have Common Frogs Rana temporaria (as well as Common Toads Bufo bufo), although not too far away - certainly at Rainham Marsh - there are other non-native frogs living and breeding quite happily. These may be Marsh Frogs or Edible Frogs, and maybe Pool Frogs as well, but as these seem to interbreed quite frequently there is some uncertainty!

Paul Ferris, 21st April 2012