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Immature
at Caroni Rice Fields, Trinidad, 28 August 2001. Photo © by Courtenay
Rooks. Second for Trinidad, third for T&T, and fifth for South
America. This elusive bird was found on 26 August 2001 by Nigel
Lallsingh, Keisha Lallsingh, and Floyd Hayes. Note the short bill, pale
forecrown, and white patch on the carpal joint. This species is
distinguished from the similar Great Blue Heron (A. herodias)
by its white thighs (not visible in this photograph; rufous in Great
Blue), white patch on the carpal joint (rufous in Great Blue), smaller
size, and shorter bill; furthermore, an immature Great Blue Heron has a
black crown. An immature Cocoi Heron (A. cocoi) is larger, paler necked, and has a proportionately bigger head and longer bill (click herefor photo). It was observed once at the Trincity Sewage Ponds.
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