The Etruscan shrew is a very small shrew that is also found in the Mediterranean region of mainland Portugal.
Its back is gray-brown and its underside is pale. It has large rounded ears, long light-colored whiskers and a long hairy tail.
Researchers studied the calls of Etruscan shrews by observing 45 animals in captivity and recording adults and pups. They selected 1,131 high-quality calls and measured 22 features, including sound structure and duration. The calls fell into four broad groups: screams, screeches, sounds between those forms, and short chirps.
The analysis also tested whether calls changed gradually rather than fitting into rigid boxes. Pup and adult calls differed, and chirps were recorded mainly in social contexts, while the other call types were more common in negative situations. The study shows how a tiny mammal’s changing vocal patterns can offer clues about what is happening around it.
An extinction-risk assessment has not been added yet.
In the agricultural plain of Thessaly, central Greece, a study analyzed more than 10,000 barn-owl pellets. Etruscan shrew records were associated with heavy clay and Vertisol soils, as well as non-irrigated and less intensively cultivated plots. These are regional distribution patterns inferred from owl diets, not a direct population count. Recording soil and farming conditions alongside detections can help track local habitat use.