Illustration of guan
guan
noun
ˈgwän 
: any of various large gregarious neotropical birds (family Cracidae) that are chiefly arboreal forest-dwellers and that somewhat resemble turkeys
Example Sentences
Recent Examples on the Web Ground-foraging birds like guans can still hear the frogs’ calls. 
Lakshmi Supriya, Science | AAAS, 26 Sep. 2017 Ziegler observes butterflies and damselflies and bees that never descend to the ground, and dozens of species of birds: barbets, paradise tanagers, scarlet macaws that arrive in pairs, and fat, piping guans, which look like elegant turkeys. National Geographic, 29 Sep. 2016
Lakshmi Supriya, Science | AAAS, 26 Sep. 2017 Ziegler observes butterflies and damselflies and bees that never descend to the ground, and dozens of species of birds: barbets, paradise tanagers, scarlet macaws that arrive in pairs, and fat, piping guans, which look like elegant turkeys. National Geographic, 29 Sep. 2016 Word History
Etymology
alteration of earlier quam, probably from Kuna (Chibchan language of Panama) kwama
First Known Use
1743, in the meaning defined above