Spicules and their on-disk counterparts (RBEs and RREs) seen at different V_los. Panels (a), (b): Hα features viewed at the limb at Doppler velocities of +30 km/s (blue) and −30 km/s (red) in panel (a) and ±40 km/s in panel (b). Panels (c), (d): Hα features on the disc at the same velocities as in panels (a), (b). The lighter shades of the colour (red/blue) indicate features with higher opacity. The evolution of the features for the entire time-series can be found online.