Editing Swainson's thrush (section)

==References==
* Foster, Mercedes S. (2007): "[http://journals.cambridge.org/production/action/cjoGetFulltext?fulltextid=936412 The potential of fruiting trees to enhance converted habitats for migrating birds in southern Mexico.]" ''Bird Conservation International'' '''17'''(1): 45–61. <small>{{doi|10.1017/S0959270906000554}}</small> 
* Ruegg, K. C., & Smith, T.B. (2002). "[http://www.pubmedcentral.nih.gov/picrender.fcgi?artid=1691041&blobtype=pdf Not as the crow flies: a historical explanation for circuitous migration in Swainson's thrush (''Catharus ustulatus'').]" ''[[Proceedings of the Royal Society#Proceedings of the Royal Society B|Proc. R. Soc. B]]'' '''269'''(1498) 1375–1381. <small>{{doi|10.1098/rspb.2002.2032}}</small>  
* Winker, Kevin & Pruett, Christin L. (2006): "[https://web.archive.org/web/20071025135127/http://www.uaf.edu/museum/bird/personnel/KWinker/Catharus%20Auk%202006.pdf Seasonal migration, speciation, and morphological convergence in the avian genus ''Catharus'' (Turdidae).]" ''[[Auk (journal)|Auk]]'' '''123'''(4): 1052–1068. [Article in English with Spanish abstract] [[Digital Object Identifier|DOI]]: 10.1642/0004-8038(2006)123[1052:SMSAMC]2.0.CO;2 PDF fulltext]