My research focuses on the paleobiology and the paleoecology of the large terrestrial fossil birds, using a mutlidiciplinary approch. I am more specifically interested on the determination of the diet, the locomotion, the reproduction, the sexual dimorphisme and the population structure. To this end, I use a large range of tools, including the fnite element analysis, the bone histology , the isotope geochemistry and the morpho-functional approache. I had the opportunity to work on a large number of fossil birds, from several contries and age, including a large late cretaceous bird from France named Gargantuavis, the large south american flightless birds Phorusrhacidae, or Gastornis known during the Tertiary mainly in Europe and north america. My current research project focus on the famous dodo, truing to reconstruct its ecology and biology.