Fig. 1
From: Interspecific and intraspecific foraging differentiation of neighbouring tropical seabirds
a Colony locations of red-footed boobies (population size >2000 indiviudals) and brown boobies (population size <200 individuals) on the Cayman Islands and b A radial plot showing standardised mean body size and mass measurements (x - mean / sd, range: -1 to +1) for both species by sex (n, red-footed boobies: female/orange = 28, male/green = 41; brown boobies: female/pink = 25, male/blue = 33). Effect sizes and results of statistical comparisons of morphometrics within and between species are presented in Additional file 1: Table S3