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Alternative name: Plain-tailed Warbler
- Phylloscopus soror
This is one of six species that used to be considered one under the name of Golden-spectacled Warbler. After the split, the other five are Green-crowned Warbler, Grey-crowned Warbler, Martens's Warbler, Whistler's Warbler, and Bianchi's Warbler.
- Clements, J. F., T. S. Schulenberg, M. J. Iliff, T. A. Fredericks, J. A. Gerbracht, D. Lepage, S. M. Billerman, B. L. Sullivan, and C. L. Wood. 2022. The eBird/Clements checklist of Birds of the World: v2022. Downloaded from https://www.birds.cornell.edu/clementschecklist/download/
GSearch checked for 2020 platform.1