Laterolateral (LL) projection and measurements in a radiograph of a wild galah: (a) widest point of the heart (orange); (b) length of the heart at height of the aorta and pulmonary artery to the apex (light blue); (c) length of the sternum from the insertion of the coracoid to the caudal edge (white); (d) depth of the sternum, 90° from the junction of the coracoid to the sternum (red).