Other Scientific Names
Leucopternis semiplumbea [Collar et al. (1994)], Leucopternis semiplumbea [BirdLife International (2004)], Leucopternis semiplumbea [Sibley and Monroe (1990, 1993)], Leucopternis semiplumbea [Stotz et al. (1996)]
Semiplumbeous Hawk (Leucopternis semiplumbeus) [XC275178]
by Patrick ODonnell from Esmeraldas: San Miguel, R\u00edo Cayapas, Ecuador (call, calls, immature?)
Semiplumbeous Hawk (Leucopternis semiplumbeus) [XC518485]
by id from La Selva biological station, Heredia, Costa Rica (call)