Species level taxonomy: "Phoenicopterus ruber (Sibley and Monroe, 1990, 1993) has been split into P. roseus and P. ruber following Knox et al. (2002), contra SACC (2005)" (IUCN.org)
IOC World Bird List recognizes six species of flamingos, as of Nov 2016:
Scientific Name: Phoenicopterus = "crimson" (phoinix), "winged" (pterus), Greek; ruber = "red"
Higher level taxonomy is still under debate, due to mosaic of character similarities to other orders of birds, although taxonomists agrees that the flamingos belong in their own Family.
Species: Phoenicopterus ruber — American Flamingo (formerly Caribbean Flamingo)
Describer (Date): Linnaeus (1758)
del Hoyo et al., (1992)
Mindell et al. 1997)
Ogilvie & Ogilvie (1986)
Olsen & Feduccia (1980)
Van Tuinen et al. (2001)