Black Heron
Egretta ardesiaca
The black heron is a medium-sized bird, with a typical height range of 42.5 to 66 cm (16.7 to 26.0 in). Their weight can range from 0.27 to 0.39 kg (0.60 to 0.86 lb). They are known for their black plumage, black bill, and yellow feet. In breeding plumage it grows long plumes on the crown and nape.
ID text from Wikipedia, CC BY-SA 4.0
Pied Heron
Egretta picata
It is a small heron, 43–55 cm (17–22 in) long, with dark slaty wings, body, and crested head, with a white throat and neck. The appearance is similar to the white-necked heron. Males (247–280 g (8.7–9.9 oz)) are heavier than females (225–242 g (7.9–8.5 oz)), but the two are similar in appearance. Immature birds lack the crest as well as the dark colouring on the head and may look like small versions of the white-necked heron. The juveniles were once classified as a separate species. Voice: The call of the pied heron is a loud 'awk' or 'ohrk' in flight. Soft cooing is given around the nest. Little else is known about vocalisations.
ID text from Wikipedia, CC BY-SA 4.0
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