EN
Biometrical analysis of four morphometric characters of male and female specimens of Capillaria ovopunctata parasitizing in Sturnus vulgaris, Erithacus rubecula, Turdus philomelos and Turdus merula, i.e. length of body, oesophagus, number of stichocytes or length of spicula and vulvar appendage respectively was carried out. It has been proved, that characters of females C. ovopunctata parasitizing in T. merula significantly differ from those of the nematodes found in other hosts. The present and previous author's results on high extensiveness and intensity of invasion allow to state that T. merula is a proper host for C. ovopunctata.