saxicavous
/sæksɪˈkævəs/ or /sak.si-KAY-vee-uhs/Definitions
1. adjective
Having the habit of excavating or digging in rock, especially for nesting purposes.
“The aardvark’s burrow was a perfect example of its saxicavous nature.”
2. noun
An animal, especially a mammal, that excavates or digs in rock for a living or nesting site.
“The geologists studied the behavior of various saxicavous animals in the region.”