Place: On cable over Rio Tajo, Toledo, Spain
Date: 19 August 2013.
[Nycticorax nycticorax, Family Ardeidae, Order Pelecaniformes, Wikipedia Entry: Black-crowned night heron]
The sound of the black-crowned night heron (borrowed from the Xeno-Canto website, recordist Carlos W.)
Marnix's Bird Gallery 