Family Typical Owls (Strigidae)

Least Concern

Tucuman Pygmy-owl (Glaucidium tucumanum)


French: Chevêchette du Tucuman German: Tucumanzwergkauz Spanish: Mochuelo tucumano
Other common names: Chaco Pygmy-owl

Glaucidium brasilianum tucumanum


, 1922,

Rosario de Lerma, 4800 feet [c. 1600 m], Salta, Argentina


Thought to be closest to G. brasilianum, G. peruanum and G. nana. Formerly treated as a race of G. brasilianum, but differs in vocalizations and DNA. Race pallens of latter, with adjacent distribution and occupying similar habitat, perhaps better included with present species. Monotypic.


SE Bolivia and SW Paraguay to NW Argentina (Salta and Tucumán to at least Córdoba), and perhaps also to W Brazil#R.

Descriptive notes

16–17 cm; male 52–56 g, female 60 g (n = 1). Small, dimorphic Glaucidium. Grey morph dark grey-brown to slaty-brown above; forehead with... read more


Series of 10–30 or more equally spaced, upward-inflected notes, c. 2 per second, becoming... read more


Semi-open, dry thorn forest, Chaco thorn-scrub and dry Chaco woodland with sparse trees and giant... read more

Food and feeding

Little published information; said to prey mainly on small birds during dry season and also to take small mammals, reptiles and... read more


Poorly known. Males with enlarged testes taken in Oct and Nov. Nests in old woodpecker cavity in tree or cactus. Clutch size 3–5 eggs... read more


Presumed resident.

Status and conservation

Not globally threatened (Least Concern). CITES II. Status uncertain, but probably not uncommon locally. Found to be "rather abundant" near Tartagal, between Salta... read more

Recommended citation

Holt, D.W., Berkley, R., Deppe, C., Enríquez Rocha, P., Petersen, J.L., Rangel Salazar, J.L., Segars, K.P., Wood, K.L. & Marks, J.S. (2019). Tucuman Pygmy-owl (Glaucidium tucumanum). 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 18 November 2019).