This repository contains the reference dataset of labelled (or otherwise useful) echo samples acquired with a BirdScan MR1 radar. This dataset enables classification of the radar echoes acquired with a BirdScan MR1 into a number of biological groups of interests (as well as the removal of non-biological targets). Files and their contents: TrainingData.csv and TrainingData.rds files: These files contain the actual training dataset, with the labels and all radar-derived features. We use a .csv file as this is compatible cross-platform and programming languages. We also include an .rds file for the R users. ReclassTable.csv: This file contains the table that is used to sort the original ‘labelHuman’ labels into the hierarchical label system, i.e., columns ‘labelHa1’ to ‘labelHa6’. MR1_ML_Tool_Documentation_v1.2.pdf: This file contains a description of the features in the dataset, as well as the classification and wingbeat frequency estimation algorithms and parameter settings that are currently being used in the SBRS software that is delivered along with the BirdScan radar. Signatures.zip: This zip file contains a folder with the echo signature and north files associated to each of the samples in the TrainingData.csv (and .rds) file. Files in the folder follow a strict directory and filenaming structure, i.e., %Y_%m_%d\siteCode-echoID_sig.dat and %Y_%m_%d\siteCode-echoID_north.dat For example: 2015_09_07\MOL-echo324_0000001606_sig.dat and 2015_09_07\MOL-echo324_0000001606_north.dat. license.txt: This file contains the license applying to the data.