Central American Pygmy-OwlFamily Strigidae
Central American Pygmy-Owl
Glaucidium griseiceps
In Spanish: Mochuelo Enano
- Resident
A tiny, grey-headed owl of Caribbean lowland rainforest, easy to miss.
The Central American Pygmy-Owl, Mochuelo Enano in Costa Rican Spanish, is a tiny owl of humid forest, about 14 to 16 cm long. In Costa Rica it lives from sea level up to about 800 m, so it belongs to the lowlands and foothills and not to the high mountains.
It is easy to miss. It hides in the canopy of tall forest and does not always call, so guides rely on known sites. Boca Tapada, Sarapiquí and Veragua are the places where it has been photographed or recorded.
On a trip we build to Boca Tapada in San Carlos, this owl is among the species visitors can look for, alongside Great Green Macaw and toucans.
How to find it
Listen for it in forest at dawn. A Costa Rican sound archive logged its song at Tirimbina, Sarapiquí, at 5:23 in the morning in December. Look in tall humid forest and the tall second growth beside it, on the Caribbean side and below about 800 m. Keep your eyes up in the canopy. Because it does not always call, guides rely on known sites rather than chance. An owling outing after dark has also turned it up at Veragua.
How to recognise it
This is a tiny owl, about 14 to 16 cm long. Look for these marks:
- A brown-grey head with many fine white spots.
- Brown upperparts, with a largely unspotted back, so the head contrasts with the body.
- Whitish underparts with reddish-brown spots on the chest.
- Reddish-brown streaks on the flanks.
- A short, dark brown tail with only two or three broken pale bars, fewer than in other pygmy-owls.
That mix of a spotted grey head, a plain back and a barely barred tail is a good checklist when you finally get one in the binoculars.
What it sounds like
Recording: rawcomposition, CC0 1.0, source, read 4 Nov 2026.
Behaviour and diet
Like other pygmy-owls, it is partly active by day, so a search does not have to wait for dark. It hunts invertebrates and small vertebrates. It tends to sit hidden in the canopy of tall forest and does not always call, which is a big part of why it is so easily overlooked. Little is known about its biology, so every careful observation of a perched or calling bird adds to the picture.
Where it lives
In Costa Rica this is a lowland and foothill owl, found from sea level up to about 800 m and not in the high mountains. It prefers humid forest and the tall second growth next to it. Across its range it also uses humid evergreen forest, secondary forest, semi-open areas and mature cacao plantations. In Costa Rica it is limited to the Caribbean side, in and near lowland and foothill rainforest. Open country suits the Ferruginous Pygmy-Owl better.
Similar birds
Costa Rica has three pygmy-owls. The Costa Rican Pygmy-Owl lives only at high elevations, generally above about 1200 m, and has a longer tail and spotted upperparts, while this species stays below about 800 m. Its rufous form is lightly spotted and can cause confusion, but this owl has fine white spots on a grey head. The Ferruginous Pygmy-Owl has streaks, not spots, on the forehead and nape, is slightly larger, and is mostly a Pacific slope and dry northwest bird.
Names and lore in Costa Rica
The Costa Rican Spanish name is Mochuelo Enano. Other Spanish names used for the species in Central America include mochuelo centroamericano, mochuelo cabecigrís and tecolotito centroamericano. A Costa Rican wildlife-rescue guide lists it as Tecolote Mesoamericano, and an older Costa Rican ecosystems page calls it Lechuza mochuelo.
Status and conservation
The Lista Oficial de las Aves de Costa Rica lists it as a resident (R), and the IUCN lists the species as Least Concern.
Photography tips
This owl is easy to miss, because it hides in the canopy of tall forest and does not always call. Guides rely on known sites, so a local guide is the best route to a photograph. Dawn in forest and owling outings after dark have both produced records.
How we know this 19 sources, each read on the date shown
- Wikipedia read 2026-11-04
https://en.wikipedia.org/wiki/Central_American_pygmy_owl - Birds of the World (Cornell) read 2026-11-04
https://birdsoftheworld.org/bow/species/capowl1/cur/introduction - EcoRegistros read 2026-11-04
https://www.ecoregistros.org/ficha/Glaucidium-griseiceps - Biosonidos, UNED Costa Rica read 2026-11-04
https://biosonidos.uned.ac.cr/node/471 - Birds of Mexico (birdsofcolombia.org) read 2026-11-04
https://www.birdsofcolombia.org/mexico/Glaucidium.html - Owling.com read 2026-11-04
https://www.owling.com/central-american-pygmy-owl/ - Birds Colombia read 2026-11-04
https://birdscolombia.com/2017/12/31/buhito-cabecigris-central-american-pygmy-owl-glaucidium-griseiceps/ - Birds for Beer (Paul Pickering) read 2026-11-04
https://birdsforbeer.com/2023/05/03/ferruginous-pygmy-owl/ - Lista Oficial de las Aves de Costa Rica (AOCR) read 2026-11-04
https://listaoficialavesdecostarica.wordpress.com/lista-oficial/lista-oficial-online/ - The Owl Pages read 2026-11-04
https://www.owlpages.com/owls/species.php?s=1980 - Cornell Neotropical Birds read 2026-11-04
https://neotropical.birds.cornell.edu/Species-Account/nb/p_p_spp/overview?p_p_spp=211256 - Ingrid Knudsen Natural read 2026-11-04
https://ingridknudsennatural.com/giras/boca-tapada - Wikipedia (es) read 2026-11-04
https://es.wikipedia.org/wiki/Glaucidium_griseiceps - Fauna Decomisada, Costa Rica read 2026-11-04
https://faunadecomisada.go.cr/guia-de-especies/aves/strigidae/glaucidium-brasilianum - Birds for Beer (Turrialba) read 2026-11-04
https://birdsforbeer.com/2020/08/23/pygmy-owls-in-or-near-turrialba/ - Lifer Tours read 2026-11-04
https://www.lifertours.com/single-post/the-owls-of-costa-rica-and-how-we-see-them - Birding Craft read 2026-11-04
https://birdingcraft.com/wordpress/2024/02/18/highlights-from-a-day-of-birding-in-costa-rica-lowlands-to-the-highlands/ - Optics4Birding blog read 2026-11-04
https://blog.optics4birding.com/owling-costa-rica/ - Christian Artuso blog read 2026-11-04
http://artusobirds.blogspot.com/2016/01/owls-of-costa-rica.html