(Icteridae; Ϯ Mountain Grackle M. subalaris) Gr. μακρος makros  long; genus Agelaius Vieillot, 1816, blackbird; "[Subgenus] 5. Macroagelaius.  12. AGELAIUS SUBALARIS, (Boissonneau.)  ... Though usually rated as a Quiscalus, this bird, in my opinion, is more properly to be regarded as an Agelaius, though differing from the typical subgroups in having a longer and more Quiscalus-like tail" (Cassin 1866).
Var. Macragelaeus.
Synon. Pseudagelaeus, Sciopsar.

Search for more names on the Key to Scientific Names in Ornithology by James A. Jobling.
Recommended citation
Jobling, J. A. (2019). Key to Scientific Names in Ornithology. In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.) (2019). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from on 20 January 2019).