Family Ovenbirds (Furnariidae)

Least Concern

Tapajos Scythebill (Campylorhamphus probatus)


French: Grimpar de Cardoso German: Dunkelrücken-Sensenschnabel Spanish: Picoguadaña del Tapajós

Campylorhamphus procurvoides probatus

J. T. Zimmer

, 1934,

Igarapé Auará, right bank of the Rio Madeira, near Borba, Brazil


Hitherto treated as conspecific with C. procurvoides and C. multostriatus, but analyses which led to establishment of race cardosoi (originally described as a species#R) showed that present species differs strongly from those two species in voice, song (scores vs procurvoides in brackets; score of 6 vs multostriatus given under that species) being an emphasized overslurred long note (3) abruptly followed by a long fast series of nearly identical short notes (3)#R, plus throat not scaly as in procurvoides and more streaked than in multostriatus (1), and crown darker than former’s but paler than latter’s (1). Two subspecies recognized.

What do (1) and (2) mean? Learn more about the scoring system.
Subspecies and Distribution
  • C. p. probatus J. T. Zimmer, 1934 – C Amazonian Brazil S of R Amazon, from R Madeira E to R Tapajós, S to Rondônia.
  • C. p. cardosoi Portes et al., 2013 – E Amazonian Brazil S of R Amazon, from R Tapajós E to R Xingu, S to N Mato Grosso.
  • Descriptive notes

    22·5–25 cm; 31·5–38 g. Slim, medium-sized woodcreeper with exceptionally long, slim, strongly decurved bill. No sexual dimorphism evident in plumage. Juvenile undescribed,... read more


    Song is a rapid trill lasting 1·5–2 seconds and comprising 15–25 notes (which appear bell-shaped... read more


    Inhabits the understorey and midstorey of humid evergreen primary forest, principally terra... read more

    Food and feeding

    Very few data, but there is no indication that this species differs in its diet or foraging ecology from both C. procurvoides and... read more


    No information.


    Presumably resident.

    Status and conservation

    Not globally threatened (Least Concern). Race cardosoi potentially Vulnerable. Fairly common at a few sites with extensive bamboo thickets or many vine tangles near... read more

    Recommended citation

    del Hoyo, J., Collar, N. & Kirwan, G.M. (2020). Tapajos Scythebill (Campylorhamphus probatus). In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona. (retrieved from on 17 February 2020).