Whistling Heron - Syrigma sibilatrix

The Whistling Heron, Syrigma sibilatrix (Pelecaniformes - Ardeidae), is endemic to South America, where it occupies two disjunct regions. A northern population, which is smaller and paler, occurs in Venezuela and eastern Colombia, whereas a larger, darker subspecies is widely distributed from the pantanal of Bolivia south to southeastern Brazil, Uruguay and northeastern Argentina.

The Whistling Heron is one of the least aquatic members of its family and prefers to forage for large arthropods in open wet grasslands.  This bird is named for its distinctive high pitched calls.

References: [1]

Photo credit: ©Thiago Calil | Locality: not indicated (2012)

High waves hit coastline of Skye by B℮n on Flickr.

White-necked Heron (Ardea pacifica)

Also known as the Pacific heron, the white-necked heron is a species of heron (Ardeidae) which is native to New Guinea and Australia. Like other heron species white-necked herons typically inhabit wet areas like freshwater wetlands, and wet grasslands, where they will feed on fish, frogs, insects, and occasionally reptiles. 

Classification

Animalia-Chordata-Aves-Pelecaniformes-Ardeidae-Ardea-A. pacifica

Image: Wayne Butterworth

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Lava Heron (Butorides sundevalli)

Also known as the Galapagos Heron, the lava heron is a species of heron (Ardeidae) which as evidenced by its common name is endemic to the Galapagos Islands. It earns its other common name due to its gray coloration which helps it blend into its hardened lava background. Lava herons usually inhabit intertidal zones and mangrove groves where they will catch fish and crabs by spearing them.

Classification

Animalia-Chordata-Aves-Pelecaniformes-Ardeidae-Butorides-B. sundevalli

Images: Benjamint444 and punteymark

Japanese Night Heron (Gorsachius goisagi)

..one of the species of “Night Herons” which breeds in Japan, and winters in the Philippines and Indonesia. They are also known to spring and summer in parts of the Korea Peninsula and Russia. Japanese night herons typically inhabit dense, damp forests near some body of water.

Currently Gorsachius goisagi is listed as Endangered by the IUCN, due to threats including deforestation and the introduction of predators like the Siberian Weasel. 

Classification

Animalia-Chordata-Aves-Pelecaniformes-Ardeidae-Gorsachius-G. goisagi

Image: Ken