Adelaide's Warbler Setophaga adelaidae
Version: 1.0 — Published May 28, 2010
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Most closely related to the St. Lucia Warbler (D. delicata) and the Barbuda Warbler (D. subita). The three species formerly were classified as a single, polytypic species (D. adelaidae), with each subspecies having a single island distribution. However, Lovette et al. (1998) found wide genetic divergence between each population, and in 2000 the three taxa were recognized as separate species (American Ornithologists’ Union 2000). Based on two studies of mitochondrial DNA sequences (Lovette and Bermingham 1999, Klein et al. 2004), the Prairie Warbler (D. discolor) or Black-throated Green Warbler (D. virens) are the species most closely related to the Adelaide’s Warbler complex.