Rusty-flanked Thrush

The white-necked thrush (Turdus albicollis) is a species of bird in the family Turdidae. It is found on Trinidad and Tobago and in every mainland South American country except Chile. It previously was called the white-necked robin. == Taxonomy and systematics == The white-necked thrush was originally described in 1818 with its current binomial Turdus albicollis. The species' further taxonomy is complicated and as of early 2026 remains unsettled. For much of the twentieth century what are now the white-throated thrush (T. assimilis) and Dagua thrush (T. daguae) were included as subspecies of the white-necked thrush. The North American Classification Committee of the American Ornithological Society (NACC) recognized the white-necked and white-throated thrushes as separate species in the first edition of its "Checklist of North American Birds". BirdLife International's Handbook of the Birds of the World (HBW) split them its Version 0, issued in 2007. What is now the independent South American Classification Committee (SACC) had done so by 2007. By 2018 the IOC had adopted the split and the Clements taxonomy followed in 2025. AviList adopted it in its first version (2025). When they made the split, the IOC, Clements, the NACC, and the SACC included daguae in the…