King, B & Russell, W / September 1978 – vol. 71, issue 9, pp 420–422 Great Blue and aberrant Grey Herons I was interested to learn of the two observations of melanistic Grey Herons Ardea cinerea (Brit. Birds 70: 76, 345-346), as well as the one seen in the Camargue, France, by Dr J. G. and Dr P. F. Harrison and described and illustrated as a hybrid Purple A. purpurea x Grey Heron (Bull. Brit. Orn. Club 88: 1-4). When unusually dark herons of Grey Heron size are ... This article is only available to registered users.To read more, please log in or purchase a subscription.