Researchers at the Catalan Institute of Human Paleoecology and Social Evolution of Tarragona (IPHES) have found hundreds of fossils of wildcat in the Romany Abric in Capellades (Barcelona), which suggests that the Neanderthal diet was broader than than previously thought.

At least I believe the project archaeologists, who qualify the discovery of "exceptional" since there are very few documented cases of small carnivorous consumption by Homo neanderthalensis, reports IPHES.
The study, published in the journal Quaternary International, shows that the wildcat was part of the diet of the Neanderthal populations that lived 55,000 years ago at the site of Capellades and supports the ability of these hominids to adapt to the environment.