In accord with AOS-SACC (Proposals 780 and 781) and AOS-NACC (Chesser et al. 2020b), the sequence of hummingbirds in the group previously listed between Chlorostilbon and Hylocharis is revised, based primarily on McGuire et al. (2014) and Hernández-Baños et al. (2020). In accord with AOS-SACC (Proposal 781), change the scientific name of Amazilia Hummingbird from Amazilia amazilia to Amazilis amazilia (Stiles et al. 2017a, b), based on genetic evidence that the traditional genus Amazilia is not monophyletic (McGuire et al. 2014).