Proposal (745) to South American Classification Committee
Add Troglodytes ochraceus to the Main List
Effect on South American CL: This would add a species to the Main List.
Background: This wren ranges from Costa Rica to Panama, with the southernmost records located along several massifs in the DariŽn Province of Panama.
New information: The species was recently recorded for the first time in Colombia during an expedition to the east flank of Cerro Tacarcuna of the Serran’a del Darien, which also represents the first record for South America (Renjifo et al. 2017). It was observed daily in singles or pairs. Two song types (XC184885, 184890) and one call (XC184888) were sound-recorded, which clearly correspond with vocalizations of this species, and not with those of the Mountain Wren T. solstitialis that occurs in the West Andes of Colombia.
The article is open access and available here: https://www.researchgate.net/publication/314904687_New_bird_distributional_data_from_Cerro_Tacarcuna_with_implications_for_conservation_in_the_Darien_highlands_of_Colombia?ev=prf_high
Recommendation: I would recommend a yes vote to add this species to the South American checklist.
Renjifo, L. M., A. Repizo, J. M. Ruiz-Ovalle, S. Ocampo & J. E. Avenda–o. 2017. New bird distributional data from Cerro Tacarcuna, with implications for conservation in the DariŽn highlands of Colombia. Bull. Brit. Orn. Cl. 137: 46-66.
Jorge Enrique Avenda–o, March 2017
Comments from Remsen: ŇYES. Archived, diagnostic recordings are sufficient evidence for adding to Main List.Ó
Comments from Zimmer: ŇYES. This, by the way, is just the southern/eastern-most record in a series of range extensions for this species, which, with more and more talented field observers in Panama, has been turning up in highland areas well to the east of its previous ÔknownŐ limits. It was probably just a matter of time until it was found across the border from the DariŽn.Ó
Comments from Stiles: "YES. The recordings and field data concur with my experience (including a recording) with this species in Costa Rica."
Comments from Pacheco: "YES. Recordings perfectly attributable to the taxon are sufficient evidence of the occurrence."
Comments from Robbins: " YES. The audio recording deposited on xeno-canto (184885) confirms the identification."