Table 2: Comparison of the songs in Part I that are trills or churrs, tempo is steady, pitch is steady, song churrs, and song is composed of three or more churrs.

Species Relative pitch (1–5; 1 = lowest) Relative sharpness (1–5; 1 = least)
Slaty-tailed Trogon 4 1
Broad-billed Motmot 1 1
Black-cheeked Woodpecker (low) 2 2
Black-cheeked Woodpecker (high) 5 5
Bright-rumped Attila 5 5
Masked Tityra 3 3
Black-crowned Tityra 3 1
White-breasted Wood-Wren 4 3
Red-throated Ant-Tanager 2 3
Red-crowned Ant-Tanager 3 2
Yellow-backed Oriole 4 4
Yellow-rumped Cacique 3 4