This readme.txt file was generated on 2021-12-07 by Shane Windsor GENERAL INFORMATION 1. Title of Dataset: Dataset for quantifying avian inertial properties using calibrated computed tomography 2. Author Information A. Principal Investigator Contact Information Name: Dr Shane Windsor Institution: University of Bristol Email: shane.windsor@bristol.ac.uk SHARING/ACCESS INFORMATION 1. Licenses/restrictions placed on the data: This work is licensed under a CC0 1.0 Universal (CC0 1.0) Public Domain Dedication license. 2. Links to publications that cite or use the data: Nicholas E. Durston, Yusuf Mahadik and Shane P. Windsor (2021) Quantifying avian inertial properties using calibrated computed tomography. Journal of Experimental Biology. 224, jeb242280. https://doi.org/10.1242/jeb.242280 DATA & FILE OVERVIEW This is a dataset of calibrated computed tomography (CT) data for two bird specimens, a barn owl (Tyto alba) and a peregrine falcon (Falco peregrinus). All data formats are repeated for two bird specimens: bo1 = barn owl 1 pf4 = peregrine falcon 4 File names are the same with bo1 or pf4 at the start. bo1_16bit_tif_top.zip Zip file containing raw CT images in 16 bit tiff format - slices approximately parallel to sagittal plane bo1_16bit_tif_calib_plot.tif Plot of the CT Calibration curve in tiff format showing first and second order polynomial fitting. bo1_calibration_data.csv Comma seperated variable file conating CT calibration data points plotted in 'bo1_16bit_tif_calib_plot' First column contains normalised gray value Second column contains relative density (1.0 = water) bo1_xyzrhomass_bird_PAICoords.txt Text file of processed voxel positions and properties for each bird specimen Voxels representing air removed using threshold to give with a total mass equal to the mass of the bird. The origin is at the centre of mass of the bird. The axes are aligned to the principal axes of inertia. Column 1, 2, 3 = x, y, z - coordinates of each voxel centre in metres Column 4 = rho - voxel average density in kg/m^3 Column 5 = mass - voxel mass in kg Voxel size for bo1 was 0.7480 mm square with 1.25 mm slice thickness Voxel size for pf4 was 0.9766 mm square with 1.25 mm slice thickness