World Bird List

Species factsheet
Ladder-tailed Nightjar (Hydropsalis climacocerca)

Order: Hydropsalis climacocerca
Family: Nightjars (Caprimulgidae)

Voices can be found here (external link)
Subspecies and Distribution
Subspecie Distribution
schomburgki e Venezuela and the Guianas
climacocerca w Amazonia
pallidior Santarém, w Pará (nc Brazil)
intercedens Obidos, w Pará (c Brazil)
canescens lower Rio Tapajós, w Pará (nc Brazil)
Annoncer