# README This dataset contains data on microclimate measured with temperature and humidity loggers and temperature loggers in nest-boxes and natural cavities. There are 3 datafiles, each containing microclimate data for separate breeding stages. The values marked as NA for humidity were not recorded since in these locations we placed a logger that only recorded temperature. ## Variable Meaning a) nest-site choice date date of data collection hour hour of data collection location ID of the breeding event from 2018 at which the data was collected cavity_type type of nesting site where the data was collected temperature temperature recorded in °C relative_humidity relative humidity recorded in % absolute_humidity absolute humidity as vapor pressure in hPa b) young in nest date date of data collection hour hour of data collection location ID of the current breeding event at which the data was collected cavity_type type of nesting site where the data was collected nesting_time stage of nesting; incubation, hatch: day of hatching, 1-16: days of nestling lives nestling_age age of the brood; below6days: broods of 6 days and younger, above6days: broods older than 6 days temperature temperature recorded in °C relative_humidity relative humidity recorded in % absolute_humidity absolute humidity as vapor pressure in hPa c) post-fledging date date of data collection hour hour of data collection location ID of the current breeding event at which the data was collected cavity_type type of nesting site where the data was collected orientation nest entrance facing one of the 8 cardinal and intercardinal directions entrance_height_m entrance height above ground level measured at the bottom of entrance hole species species which occupied the nesting cavity; BT: blue tit, GT: great tit temperature temperature recorded in °C relative_humidity relative humidity recorded in % absolute_humidity absolute humidity as vapor pressure in hPa