Belize (B), Bolivia (B), Brazil (B), Colombia (B), Costa Rica, Ecuador (B), El Salvador (B), Guatemala (B), Honduras (B), Mexico (B), Nicaragua (B), Panama (B), Peru (B), Venezuela (B).
Population
Estimated population is unknown (2012).
White-necked Puffbird (Notharchus hyperrhynchus) [XC261837]
by Olaf Jahn from Esmeraldas: Playa de Oro, village and vicinity, R\u00edo Santiago, Ecuador (song)
White-necked Puffbird (Notharchus hyperrhynchus) [XC456473]
by GABRIEL LEITE from Amajari, State of Roraima, Brazil (song)
Subspecies
Notharchus macrorhynchos (Sibley and Monroe 1990, 1993) has been split into White-necked Puffbird (Notharchus macrorhynchos), White-necked Puffbird (Notharchus hyperrhynchus) and Buff-bellied Puffbird (Notharchus swainsoni) following SACC (2005).
The following 3 subspecies are recognised:
hyperrhynchus (P.L. Sclater, 1856) - Southern Mexico (Oaxaca) south to northern and north-eastern Venezuela, and south to Colombia, Ecuador, eastern Peru, northern Bolivia and western Brazil (east to R Tapajós and south to Mato Grosso). Considered by some authors to be a distinct species, White-necked Puffbird (Notharchus hyperrhynchus).
paraensis Sassi, 1932 - Lower Amazon Valley in Brazil (Pará east of R Tapajós and into northern Maranhío).
cryptoleucus van Rossem, 1934 - Pacific lowlands of El Salvador and north-western Nicaragua.