1. Bates D, Maechler M, Bolker B, Walker S (2015) Fitting linear mixed-effects models using lme4. J Stat Softw 67:1–48
2. Bedell PA (1996) Evidence of dual breeding ranges for the Sedge Wren in the Central Great Plains. Wilson Bull 108:115–122
3. Bennett PM, Owens IPF (2002) Evolutionary ecology of birds: life histories, mating systems and extinction. Oxford University Press, Oxford
4. Bolker B, Skaug H, Magnusson A, Nielsen A (2012) Getting started with the glmmADMB package. http://glmmadmb.r-forge.r-project.org/glmmADMB.pdf . Accessed 18 Nov 2016
5. Boyce AJ, Martin TE (2017) Contrasting latitudinal patterns of life-history divergence in two genera of New World thrushes (Turdinae). J Avian Biol 48:581–590