This following info about the Emerald Towers is from "Where to watch birds in South America" by Nigel Wheatley:
Specialities: Little Chachalaca, Black-necked Aracari, Red-billed Toucan (note the taxonomic change; today included in White-throated Toucan - R. tucanus), Ferruginous-backed Antbird, Pompadour Cotinga, Cayenne Jay, Plumbeous Euphonia.
Others: Little Tinamou, Agami Heron, Green Ibis, Grey-lined Hawk, Marbled Woodquail, Rufous-sided Crake, Grey-fronted Dove, Red-bellied & Red-shoudered Macaws, Black-bellied Cuckoo, Grey Potoo, (Eastern) Long-billed Hermit, White-necked Jacobin, Fork-tailed Woodnymph, Blue-crowned Motmot, Paradise Jacamar, Swallow-wing, Channel-billed Toucan, Chestnu & Ringed Woodpeckers, Lineated Woodcreeper, Mouse-coloured Antshrike, Black-headed Antbird, Blue-backed & White-bearded Manakins, Painted Tody-flycatcher, White-lored Tyrranulet, Helmeted Pygmy-tyrant, Greyish Mourner, Yellow-throated Flycatcher, Lemon-chested Greenlet, Black-capped Donacobius, Coraya Wren, (Neotropical) River Warbler, Pectorial Sparrow, Fulvous-crested Tanager, White-vented Euphonia.
Above are obviously only a small sample of the possibilities....