Guans

These birds resemble turkeys. One species, the Spix’s Guan, has brown feathers speckled with white and red wattle. There’s also the Blue-throated Piping Guan, that’s mostly black with a gorgeous green shimmer. On moonlit nights, the Spix’s Guan is known to make frightening yelling noises. At dusk and dawn, the wings of the bird make a rattling sound, mainly to attract mates (Rainforest Expeditions).

Potoos

If you want to find the Potoos, you’ll probably need binoculars. These owl-like birds are great at camouflaging, despite their large heads. It’s all thanks to their mottled brown and gray feathers that allow them to spend the day perched on stumps and branches. When they open their truncated beaks, they have large mouths that are quite unsettling to look at (Tambo Patalodge).