(2008) “A Complete Species-Level Phylogeny of the Grackles (Quiscalus spp.), Including the Extinct Slender-Billed Grackle, Inferred from Mitochondrial DNA”, The Condor110 (4), p. 718–728. doi:10.1525/cond.2008.8633.
Haemig, Paul D. (2009). “Ecology and Ethnobiology of the Slender-billed Grackle Quiscalus palustris”, Journal of Ornithology. doi:10.1007/s10336-009-0467-2.