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>Figure 8: The plot of the two factor coordinates from Principal Component Analysis for Amazona parrots displaying red in the head from Mexico and Mesoamerica separated into sexes based on three metric parameters (length of wing chord, length of tail, culmen).
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Figure 8: The plot of the two factor coordinates from Principal Component Analysis for Amazona parrots displaying red in the head from Mexico and Mesoamerica separated into sexes based on three metric parameters (length of wing chord, length of tail, culmen).