Sub-species: Busarellus nigricollis nigricollis Date: 2012-10-13 State: Mato Grosso
Basis of record: Human observation Catalogue number: Bird sounds:XC116247 View record
Sub-species: Busarellus nigricollis nigricollis Date: 2003-09-20 State: Amazonas
Basis of record: Human observation Catalogue number: Bird sounds:XC84954 View record
Sub-species: Busarellus nigricollis nigricollis State: Roraima
Basis of record: Human observation Catalogue number: Bird sounds:XC264371 View record
Sub-species: Busarellus nigricollis nigricollis Date: 1998-12-23 State: Amazonas
Basis of record: Human observation Catalogue number: Bird sounds:XC84952 View record
Sub-species: Busarellus nigricollis nigricollis Date: 2000-01-14 State: Mato Grosso do Sul
Basis of record: Human observation Catalogue number: Bird sounds:XC84953 View record