We document the first record of nectarivory and bird predation in the Puerto Rican Dwarf Anole, Anolis occultus, which expands our knowledge on the natural history in the most diverse genus of Neotropical lizards. In addition, we conducted a literature review on all recorded information about this species, which revealed that little is known about the natural history and the ecology of A. occultus since its description in 1965. A discrepancy exists between the International Union for the Conservation of Nature's (IUCN) and the Puerto Rico's Department of Natural and Environmental Resources' (DNER) listings of A. occultus: 'Least Concern' in the former, 'Data Deficient' in the latter. This discrepancy in international and state listing categories, along with the lack of ecological and historical information on the species, warrants a change of the species' status to 'Data Deficient' by the IUCN, and we recommend areas of ecological research with conservation implications for the species. There are 42 species of lizards documented for Puerto Rico by 2016 (including the main island of Puerto Rico and on Mona Island, Desecheo Island, Vieques, Culebra, and satellite islets and cays) of which 13 belong in the genus Anolis (notables: two subspecies, A. cristatellus cristatellus and A. c. wileyae; A. roosevelti, which is presumably extinct). Of those 13 species, ten occur in the mainland of Puerto Rico, with Mona Island, Desecheo Island, and Culebra Island having an endemic anole each. We have garnered field observations about one of the least noticed lizards of Puerto Rico, the Dwarf Anole, A. occultus Williams and Rivero 1965. Herein we include a detailed account on nectarivory by A. occultus, the first case reported for this species. Also, we