EN
During the years 1991—1992 fecal samples of 119 red deer, 87 fallow deer and 78 roe deer from two different hunting area in the South and North parts of Poland (Pszczyna and Iława, respectively) were examined using the Vajda method. Larvae of 4 species of Protostrongylidae and Dictyocaulidae were found. In red deer — Elaphostrongylus cervi, Dictyocaulus noerneri, Varestrongylus sagittatus on both areas; in fallow deer — E. cervi, D. noerneri, V. sagittatus in Iława and E. cervi, D. noerneri in Pszczyna; in roe deer — V. capreoli and D. noerneri in Iława and V. capreoli in Pszczyna. The highest extensiveness of invasion of E. cervi reached 86% (82% on the average) and was found in Pszczyna. Extensiveness of invasions of fallow deer living on the same biotopes with red deer was much lower and reached 50.3% on the average.