1. (common medium-large squirrel of eastern North America
now introduced into England)
wiewiórka szara
synonim: eastern grey squirrel
synonim: eastern gray squirrel
synonim: Sciurus carolinensis

2. (common reddish-brown squirrel of Europe and parts of Asia)
wiewiórka pospolita, wiewiórka ruda: : synonim: red squirrel
synonim: Sciurus vulgaris