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WEC 270: Florida's Introduced Birds: Purple Swamphen (Porphyrio porphyrio)

Figure 4. The introduced Purple Swamphen can be distinguished from similar native species by the color of its bill and frontal shield (a fleshy plate on the forehead). Purple Swamphens (A) have red frontal shields and bills; their bills are also thicker than those of similar native species. Native Purple Gallinules (B) have bluish-white frontal shields and red bills tipped with yellow. Native Common Moorhens (C) have red frontal shields and red bills tipped with yellow. Credit: Monica E. McGarrity, University of Florida, 2009