Fig. 1From: Volume and antimicrobial activity of secretions of the uropygial gland are correlated with malaria infection in house sparrowsScatterplot showing the relationship between the volume of the uropygial gland (mm3) and scaled body mass index in haemosporidian infected (white circles, dotted line, N = 57) and uninfected house sparrows (grey circles, solid line, N = 165)Back to article page