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The cocoi heron is a species of long-legged wading bird in the heron family Ardeidae found across South America. It has predominantly pale grey plumage with a darker grey crest. A carnivore, it hunts fish and crustaceans in shallow water.
Text adapted from Wikipedia, licensed CC BY-SA 4.0.
ID tip
The cocoi heron is the largest of the South American heron species and measures 95–130 cm (37.5–51 in) in length, although body sizes vary regionally; with southern individuals probably being the largest. Adult weight of both males and females can variously range from 1.14 to 3.2 kg (2.5 to 7 lb). In the adult, wing length has been recorded as 421–455 mm (16.5–18 in), tail length 161–173 mm (6.5–7 in), culmen from base 128.5–148.7 mm (5–6 in) and tarsus 179–192 mm (7–7.5 in).
Text from Wikipedia, licensed CC BY-SA 4.0.
Where it lives
When to see it
Peak activity in October · a resident species across most of its range
Easily confused with
Goliath HeronArdea goliathIt is the world's largest living heron (though the extinct Bennu heron was larger).
Side by side: Cocoi Heron vs Grey Heron · Cocoi Heron vs Purple Heron · Cocoi Heron vs White-necked Heron
Learn the Cocoi Heron for real
BeakBrain drills you on photos and calls until you can greet this bird by name in the field. Free to play, on any device.
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