data based on cormorant pellets collected in the field; excel file constisting of 2 tables: Table 1 has four parts providing per pellt: 1. molecular sexing of the pellets including peak heigth in capillary electrophoresis (RFU); females with 2 peaks, males with one peak; 2. molecular fish identification from pellets (presence absence data); fish species as column headers; 3. morphological analysis (count data) of fish hard parts identifiable to species level and measurable i.e. suitable for fish-length regression analysis; 4. morphological analysis: all hard parts including non-measurable ones and not to species identifiable; Table 2 contains per pellet the mean fish length (mm) per fish specie