Background:The European Robin(Erithacus rubecula)is eurytopic in its choice of nest site,which can be either half-open or closed,and situated either on the ground or at a height of several meters.On occasion,robins also nest in closed nestboxes,though gen
Background:As the major load-bearing structures,bones exhibit various properties related to mechanical perfor-mance to adapt to different locomotor intensities.The habits and ontogenetic changes of locomotion in animals can,thus,be explored by assessing s