The relationships of the “wren-thrush”, Zeledonia coronata Ridgway

Comparisons of the electrophoretic pattern of the egg-white proteins of Zeledonia coronata with the patterns of most groups of passerine birds indicate that this species is not a thrush, but a nine-primaried oscine , probably allied most closely to, and possibly a member of, the wood warblers (Parulidae of Wetmore, 1960). Investigation of the taxonomic history of Zeledonia suggests that an early combination of bias, errors, and incomplete comparative studies conspired to divert the attention of later investigators from the ample anatomical evidence indicating the true relationships of Zeledonia