Fig. 1
From: High level of extra-pair paternity in the socially monogamous Marsh Tits (Poecile palustris)

Distances between the social nest of the extra-pair sire and the nest in which he sired young
From: High level of extra-pair paternity in the socially monogamous Marsh Tits (Poecile palustris)
Distances between the social nest of the extra-pair sire and the nest in which he sired young