O. G. Dely szerk.: Vertebrata Hungarica 8/1-2. (Budapest, 1966)

Topál, Gy.: Some observations on the nocturnal activity of bats in Hungary 139-166. o.

Explanation of Tables Table 1. Data of observations at dusk: 1 = locality of observation, 2=date, 3= time of sunset according to Central European Mean Time, 4= commencement of exit, 5 = end of exit flight, 6= period in minutes elapsed between sunset and commencement of flight, 7 = period of departure in minutes, 8 = temperature in Celsius grades measured at commencement of observation, 9 = temperature measured at end of observation, 10 = state of sky, 11 = air motion, 12 = number of departed bats. Table 2. Data of observations at dawn: 13 = locality of observation, 14 = date, 15 = time of sunrise according to Central European Mean Time, 16= commencement of return flight, 17 = commencement of return flight, 18 = period elapsed between end of return flight and sunrise, 19 = period of return flight in minutes, 20= temperature in Celsius grades measured at commencement of observation, 21 = temperature measured at end of observation (round figures based on estimations), 22 = state of sky, 23 = air motion, 24 = number of returned bats.