Figure 1
From: Heritability and genetic correlation between the sexes in a songbird sexual ornament

(a) Female (left) and male Iberian pied flycatchers displaying white FP. (b) Schematic relationships of the Z sex chromosome of a male individual (grandson) with those of his mother (left) and father, and maternal and paternal grandparents. Numbers besides dotted lines indicate the probability of sharing the same Z chromosome across generations.