White-throated ThrushFamily Turdidae
White-throated Thrush
Turdus assimilis
In Spanish: Mirlo Gorgiblanco (Yigüirro Collarejo, Yigüirro de Montaña)
- Resident
A yellow-billed mountain thrush with a streaked white throat
The White-throated Thrush (Mirlo Gorgiblanco) is a medium thrush with a white, dark-streaked throat, a yellow eye-ring and a bold yellow bill. In Costa Rica it lives roughly between 800 and 1,800 m above sea level.
It is fairly common on the Pacific slope and very uncommon on the Caribbean slope. On a trip we build, Wilson Botanical Garden and Las Cruces is one place to look for it.
This is a bird to listen for as much as to look for: its song is very similar to that of the American Robin and carries from a high forest perch.
Where to see it
How to find it
Listen first for singing from a high perch in the forest canopy, through the morning and again in late afternoon. Then look lower, because it forages low and drops to the ground: watch the forest floor and low cover, not only the canopy. Fruiting fig trees are worth a stop, since they drew it in at Arenal in January. Coffee plantations, shrubby pastures and regrowth forest in the mid-elevation foothills are good places to scan. Outside the breeding season some birds move downslope into hedgerows and suburban gardens, especially where fruit is available.
How to recognise it
Start with the throat. It is white with dark streaks, and a white crescent sits just below it.
The eye-ring is yellow. The bill and feet are bold yellow.
This is a medium thrush, about 23 cm long. The breast is light gray to gray-brown and the back is dark gray to gray-brown.
Males and females look alike. The nominate form has a rusty brown head and upperparts, a detail that describes the species in general rather than Costa Rica in particular.
Seen well, the bold yellow eye-ring and the clear throat pattern make it distinctive.
What it sounds like
Recording: Tommy Andriollo, CC BY 4.0, source, read 4 Nov 2026.
Behaviour and diet
This thrush usually feeds on or near the ground, though it will climb into fruiting trees. It forages low in the vegetation, drops to the ground and flips leaf litter aside with its bill to find food. It eats fruit, insects and other invertebrates such as worms.
Across its range, breeding appears to run from March to July. The nest is a cup and the eggs are mottled. Audubon calls it a shy forest thrush of tropical mountains.
Where it lives
In Costa Rica this thrush lives roughly between 800 and 1,800 m above sea level. It breeds in the foothills and lower mountain slopes, and it is fairly common on the Pacific slope and very uncommon on the Caribbean slope.
Studies in Costa Rica suggest it likes a mix of habitats: coffee plantations, shrubby pastures and regrowth forest, as well as mature forest. It also uses palm groves.
Across its whole range it breeds in and near humid forest of foothills and mountains, up to about 3,000 m, from central and western Panama to Mexico.
When to see it
Singing is mostly heard from February to August, so these months are when listening for it works best. That timing comes from the whole range, not only Costa Rica.
Similar birds
The Clay-colored Thrush, Costa Rica's national bird, is plain brown and is the species this thrush is most often confused with. The White-throated Thrush has distinctive white streaking on the throat. The White-necked Thrush and Dagua Thrush also show a white crescent on the chest and were once treated as the same species, but they differ in genetics and in voice.
Names and lore in Costa Rica
The usual name in Costa Rica is mirlo gorgiblanco. The official list also gives Yigüirro Collarejo and Yigüirro de Montaña. Outside Costa Rica, Spanish names include zorzal cuelliblanco, zorzal gorjiblanco and sensontle gorgiblanco.
Status and conservation
The official Costa Rican bird list gives it the status of resident (R), and the IUCN rates it Least Concern across its range.
Photography tips
Because it forages low, watch the forest floor and low cover, not only the canopy. Look for it dropping to the ground and flipping leaf litter aside with its bill. Fruiting trees can bring it into view, as the figs at Arenal did.
Trips that find it
- The Deep South: Quetzals, San Vito and the Golfo Dulce11 nightsSee the trip
Tell us when you are travelling and our team in Costa Rica builds the trip around the birds you want to see.
Plan my birding tripHow we know this 20 sources, each read on the date shown
- iNaturalist (Wikipedia text) read 2026-11-04
https://www.inaturalist.org/taxa/12711-Turdus-assimilis - Cornell Birds of the World read 2026-11-04
https://birdsoftheworld.org/bow/species/whtrob1/cur/introduction - BeakBrain read 2026-11-04
https://beakbrain.com/birds/white-throated-thrush/ - Animalia.bio (Wikipedia text) read 2026-11-04
https://animalia.bio/white-throated-thrush - YouTube read 2026-11-04
https://www.youtube.com/shorts/7v7EUdU-VoA - BirdsPix read 2026-11-04
https://www.birdspix.com/north-america/thrushes-turdidae/white-throated-thrush - Cloudbridge Nature Reserve read 2026-11-04
https://www.cloudbridge.org/wp-content/uploads/2020/04/Bird-Species-List-Costa-Rica-13-April-2020.pdf - Avibase read 2026-11-04
https://avibase.bsc-eoc.org/species.jsp?avibaseid=7C5502673304165B - AOCR Lista Oficial read 2026-11-04
https://listaoficialavesdecostarica.wordpress.com/lista-oficial/lista-oficial-online/ - Audubon Field Guide read 2026-11-04
https://www.audubon.org/field-guide/bird/white-throated-thrush - Copa de Árbol read 2026-11-04
https://www.copadearbol.com/costa-rica-national-bird-clay-colored-thrush-birdwatching/ - South Dakota Birds and Birding read 2026-11-04
https://www.sdakotabirds.com/species/white_throated_thrush_info.htm - Aves de Costa Rica read 2026-11-04
https://www.avesdecostarica.com/Turdus-assimilis.html - Field Guides Birding Tours (2015 trip report) read 2026-11-04
https://fieldguides.com/triplists/cr215.html - Field Guides Birding Tours (2023 trip report) read 2026-11-04
https://fieldguides.com/triplists/cr123.html - EcoRegistros read 2026-11-04
https://www.ecoregistros.org/sheet/Turdus-assimilis - Cornell Birds of the World read 2026-11-04
https://birdsoftheworld.org/bow/species/whtrob1/cur/introduction?media=audio&printable= - Wikipedia (Spanish) read 2026-11-04
https://es.wikipedia.org/wiki/Turdus_assimilis - Wikipedia read 2026-11-04
https://en.wikipedia.org/wiki/Turdus_assimilis - Wikipedia read 2026-11-04
https://en.wikipedia.org/wiki/White-throated_thrush