This work deals with decomposition of the vertebrate body during the winter months. The introductory, theoretical part is devoted to the vertebrate decomposition processes and the insect body settlement. It also describes individual insect families with their representatives on cadavers, and the influence of climatic conditions on their development. Also mentioned isdiapauza, which contributes to the level of cold resistance of insects. At the site of Brno, 7 experimental fields were set up, the object of the experiment was chickens. The research ran from 02.12.2016 to 30.03.2017. At weekly intervals, muditoring of cadavers based on ongoing decomposition and later on the collection of necrophagous fauna in connection with current climatic conditions took place. During the experiment, 11 species of necrophagous fauna were found on cadavers, 5 of them from Diptera and 6 from Coleoptera. Determination of insects took place at the Prague Institute of Criminology by pplk. Ing. Hana Šuláková. The results were compared with those of other authors with whom they basically agree.