The American flamingo breed in the Galápagos. The population in Galápagos differs genetically from that in the Caribbean, and the Galápagos flamingos are significantly smaller, exhibit differences in body shape sexual dimorphism, and lay smaller eggs. They are sometimes separated as Phoenicopterus ruber glyphorhynchus.
Its preferred habitats are similar to those of its relatives: saline lagoons, mudflats, and shallow, brackish, coastal or inland lakes.
