Black-crowned night heron: Difference between revisions - Wikipedia

Line 76:

== External links ==

{{commons}}

* {{cite web | last1=Blasco-Zumeta | first1=Javier | last2=Heinze | first2=Gerd-Michael | work=Identification Atlas of Aragon's Birds | title=Black-crowned night-heron | url=http://blascozumeta.com/wp-content/uploads/aragon-birds/non-passeriformes/037.nightheron-nnycticorax.pdf | access-date=1 June 2018 | archive-date=25 October 2018 | archive-url=https://web.archive.org/web/20181025071051/http://blascozumeta.com/wp-content/uploads/aragon-birds/non-passeriformes/037.nightheron-nnycticorax.pdf | url-status=dead }}

* [http://www.birds.cornell.edu/AllAboutBirds/BirdGuide/Black-crowned_Night-Heron.html Black-crowned Night-Heron Species Account] – Cornell Lab of Ornithology