Chauvireria is an extinct genus of small-sized landfowl, belonging to the family Phasianidae, and closely related to modern partridges, Old World quails and francolins.
[1] In 2020, Boev described another species, C. bulgarica, after 54 fossilized bones belonging to at least 4 individuals, discovered in 1993 by the author himself in a landfill near Slivnitsa.
[1] Chauvireria balcanica, the type species of the genus, was quite abundant in its environment, representing 85% of the fossil remains in the Varshets locality.
[1] C. bulgarica remains were discovered in a cave landfill exposed by stone exploitation near Slivnitsa, in Bulgaria.
[1] It is speculated that this abundance in the fossil record may be due to the prevalence of the genus in the alimentation of the large eagle owls suspected to be the reason for the accumulation of bones in both localities, that were during the Early Pleistocene parts of cave systems, that may have been used as an eyrie for these nocturnal raptors.