Fig. 1From: Nest defense in the face of cuckoldry: evolutionary rather than facultative adaptation to chronic paternity lossBrood parentage. For each genotyped brood, bars illustrate the proportions of within-pair offspring (light grey), offspring sired by extra-pair males (dark grey) and foreign fry (black), relative to total brood size. Note that paternity shares were calculated relative to maternal brood sizes, which do not include foreign fryBack to article page