Insights From Citizen Science and Opportunistic Records on the Trophic Ecology of Spizaetus melanoleucus (Accipitridae)

During fieldwork in northeastern Argentina, we documented four novel prey‐carrying events of the rare Black‐and‐white Hawk‐Eagle ( Spizaetus melanoleucus ). Along with these observations, we reviewed published and citizen science records, doubling known prey items and revealing new trophic interactions, highlighting how opportunistic observations can expand ecological knowledge of elusive neotropical raptors.