Figure 1.
(a) The number of repeated observations of individuals. (b) The ages of Lundy house sparrows (y-axis, in years) in relation to the percentage of fledged individuals of their own cohort that were still alive (x-axis), 2013−2017.
(a) The number of repeated observations of individuals. (b) The ages of Lundy house sparrows (y-axis, in years) in relation to the percentage of fledged individuals of their own cohort that were still alive (x-axis), 2013−2017.