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Seasonal distribution of the azure gallinule (Porphyrula flavirostris), with comments on vagrancy in rails and gallinules.
Cinco especies solo fueron observadas en Agua Dulce (Anas platyrhynchos, Branta bernicla, Gavia immer, Melanitta perspicillata, Podiceps attritus y Podiceps nigricollis) y cinco en El Ermitano (Anas penelope, Anas strepera, Dendrocygna bicolor, Porphyrula martinica y Tachybaptus dominicus).
The best adapted are the jacanas (Jacana) of subtropical areas in South America, Africa, and Asia, which possess exceptionally long toes to stabilize them and help spread out their weight; in temperate areas, moorhens (Gallinula chloropus), gallinules (Porphyrula), and crakes (Laterallus) are also capable of exploiting similar environments.