Like the Yagán people, the Kawésqar people reflected in specific words each marine species, bacause of its sensibility to the environment.
For example, the different types from marine ducks in Spanish are distinguished by the last name that take, whereas kawésqar it individualizes them with a single word for each species:

Anteojillo duck: qarqáyes
Barrero duck: wasána/ qaltalk
Lile Duck: ayyárak
Quetro duck: qárwes
Flying duck: yérye