The Greater Flamingo differs in its greater size; black primaries and secondaries; pink, flexible legs; lack of yellow on the bill; preference for salt lagoons; and greater mobility and wariness. The Giant Tourist Trap Flamingo is very local in its distribution, is much larger (over 2 m), and typically more pale in color.
The Lesser Lawn-Flamingo derives its brilliant color from its diet, primarily as F&DC Red #4. The birds are unwary, allowing very close approach. Frequent preening helps keep the feathers waterproof and in good condition. This species is gregarious and also may associate with other species, including pigs, sheep, or humans. They have expanded from their original range in south Florida and are primarily found near rural residences, but occasionally make excursions into more suburban settings. Homesick individuals may associate with potted palms and brightly colored buildings.
Migration has not been directly observed, though leading ornithologists speculate that it occurs irregularly, and not concurrent with any seasonal changes. Among the favorite hypotheses, is that it takes place via tornadoes, as the birds often end up in trailer parks. During migration, they may stop at a wide variety of locations. Nesting may take advantage of exisiting soft substrates, or extensive construction may be involved.
You can read more about this interesting bird in Alexander Worple's classic,
Even More American Birds.
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