Grey-breasted Wood Wren (Henicorhina leucophrys)

OTHER NAMES: N/A
Latin Etymology: Henicorhina ("unique nostrils") leucophrys ("white browed")

Grey-breasted Wood Wren (Henicorhina leucophrys) at San Gerardo de Dota, Costa Rica - November 2025

Featured Subspecies: Henicorhina leucophrys collina
Weight: 13-17.5g  /  Length: 10-11.5cm  /  Wingspan: ?
NO UK STATUS / IUCN Red List: Least Concern

A wren of the upland neotropics, it has a discontinuous range of various montane forests from Mexico to Bolivia, which according to some studies has suggested might actually represent an enormous number of lineages that may represent separate species, a fact emphasised that most populations are reproductively isolated due to their widespread montane habitats. 
 
Related Species: 
Order: Passeriformes
Family: Troglodytidae
Genus: Henichorhina
SUBSPECIES: H.l. festiva, H.l. mexicana, H.l. castanea, H.l. capitalis, H.l. collina, H.l. bangsi, H.l. leucophrys, H.l. brunneiceps, H.l. hilaris, H.l. venezuelensis, H.l. meridana, H.l. boliviana

 
- Sighting Locations - 

COSTA RICA 

A resident of the Talamancan Montane Forest
- COSTA RICA 2025 TRIP: Seen at San Gerardo de Dota 

Further Notes: BirdForum Opus, IUCN Red List, RSPB, Wikipedia, Xeno-canto

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Cabanis's Wren (Cantorchilus modestus)

OTHER NAMES: Plain Wren
Latin Etymology: Cantorchilus ("sing wren") modestus ("moderate, reserved")

Cabanis's Wren (Cantorchilus modestus) at Tarcoles, Costa Rica - November 2025

Featured Subspecies: N/A
Weight: 16-19g  /  Length: 12.5-14cm  /  Wingspan: ?
NO UK STATUS / IUCN Red List: Least Concern

Up until 2016, it was considered that the species of the plain wren was found throughout Costa Rica, however, with evidence from genetics and analysis of vocalisations it was discovered that there were in fact three species present! Cabani's wren is the most widely distributed of the three, as while it reaches the edge of it's range in Costa Rica, it is found as far as Mexico, while the Canebrake Wren is near endemic to Costa Rica's Carribean coast, and the Isthmian Wren has the bulk of its range in Panama.   

Related Species: 
Order: Passeriformes
Family: Troglodytidae
Genus: Cantrorchilus
SUBSPECIES: none - monotypic 
 
- Sighting Locations -

COSTA RICA - Spanish (Costa Rican) - Soterrey Chinchirigüí
Found in the Northern part of the country on the Pacific Side
- COSTA RICA 2025 TRIP: Seen at Tarcoles 

Further Notes: BirdForum Opus, IUCN Red List, RSPB, Wikipedia, Xeno-canto

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Rufous-Backed Wren (Campylorhynchus capistratus)

OTHER NAMES: N/A
Latin Etymology: Campylorhynchus ("curved bill") capistratus ("hooded")

      Rufous-Backed Wren (Campylorhynchus capistratus) at Tarcoles, Costa Rica - November 2025

Featured Subspecies: Campylorhynchus capistratus capistratus
Weight: 29-42g /  Length: 17cm  /  Wingspan: 22-24cm
NO UK STATUS / IUCN Red List: Least Concern

A large and characterful wren, and one of the more common species seen around Tarcoles, where it was seen around more disturbed habitats including the grounds of my accomodation, often in small groups. They are bold, often being one of the first species to emerge from cover, and often with their family group it tow. It was recently split from Russet-naped Wren and Velacruz Wren, which are both found in Mexico. 

Related Species: 
Order: Passeriformes
Family: Troglodytidae
Genus: Campylorhynchus
SUBSPECIES: C. r. nigricaudatus, C. r. xerophilum, C. r. nicaraguae, C. r. capistratus, C. r. castaneus
 
- Sighting Locations -

COSTA RICA - Spanish - Cucarachero Dorsicastaño ("Chestnut-backed Cockroachish")

Common in North West Costa Rica
- COSTA RICA 2025 TRIP: Seen at Tarcoles

Further Notes: BirdForum Opus, IUCN Red List, RSPB, Wikipedia, Xeno-canto

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Sedge Wren (Cistothorus stellaris)

OTHER NAMES: Short-billed Marsh Wren
Latin Etymology: Cistothorus ("shrub leaping") stellaris ("starry")

Alex Holt · Sedge Wren

Singing Sedge Wren (Cistothorus stellaris) at Buffalo River State Park, Minnesota - July 2024

Featured Subspecies: N/A
Weight: 7-10g/kg  /  Length: 10-12cm  /  Wingspan: 12-14cm
NO UK STATUS / IUCN Red List: Least Concern 

Hearing a sedge wren in the grasslands of Northern Minnesota didn't prove too much of a challenge as they were one of the more vocal birds as I walked down the mown track. Seeing one on the other hand proved an entirely separate challenge as even when moving in the grass they never seemed to actually emerge from it which is a shame as they have a lovely subtle patternation.

Related Species:
Order: Passeriformes
Family: Troglodytidae
Genus: Cistothorus
SUBSPECIES: none - monotypic 

 - Sighting Locations -

UNITED STATES - Breeds in Midwest, Winters on Gulf Coast
 - CHICAGO TO ALASKA ROADTRIP 2024: Heard in Minnesota

Further Notes: BirdForum Opus, IUCN Red List, RSPB, Wikipedia, Xeno-canto

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Rock Wren (Salpinctes obsoletus)

OTHER NAMES: N/A
Latin Etymology: Salpinctes ("trumpeter") obsoletus ("worn out")

Adult Rock Wren (Salpinctes obsoletus) at Writing-on-Stone National Park, Alberta, Canada - July 2024

Featured Subspecies: Salpinctes obsoletus obsoletus
Weight: 15-18g  /  Length: 12-15cm  /  Wingspan: 22-24cm
NO UK STATUS / IUCN Red List: Least Concern

A wren primarily found in the West of North America, and is capable of living even in harsh deserts where few other birds survive. They build a small walkway of pebbles up to their nest, although the purpose of them doing so is currently unknown.

Related Species:
Order: Passeriformes
Family: Troglodytidae
Genus: Salpinctes
SUBSPECIES: S. o. obsoletus, S. o. guardelouppenis, S. o. tenuirostris, S. o. exsul, S. o. neglectus, S. o. guttatus, S. o. fasciatus, S. o. costaricensis

 - Sighting Locations -

CANADA - Migrant breeder at edge of it's range at the South-Western border with the US
  - CHICAGO TO ALASKA ROADTRIP 2024: - Seen in Alberta. 

Further Notes: BirdForum Opus, IUCN Red List, RSPB, Wikipedia, Xeno-canto

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Bewick's wren (Thryomanes bewickii)

OTHER NAMES: N/A
Latin Etymology: Thryomanes ("fond of reeds") bewickii ("named for Bewick")

 Adult Bewick's Wren (subspecies T. b. marinensis) at San Jose, California - August 2022 - Handled by Licenced Ringers

Featured Subspecies: Thryomanes bewickii marinensis
Weight: 8-12g  /  Length: 14cm  /  Wingspan: 18cm
NO UK STATUS / IUCN Red List: Least Concern

A small wren species with a bold supercillium and a long curved beak, they favour open habitats and drier climes. Although a fairly common bird in much of their range, some populations have suffered huge declines, to the point where they are near extinct east of the Mississipi. 

Related Species:
Order: Passeriformes
Family: Troglodytidae
Genus: Thryomanes
SUBSPECIES: T. b. calophonus, T. b. drymoecus, T. b. marinensis, T. b. spilurus, T. b. leucophrys, T. b. charienturus, T. b. cerroensis, T. b. magdalenensis, T. b. brevcauda, T. b. eremophilus, T. b. cryptus, T. b. pulichi, T. b. sadai, T. b. mexicanus, T. b. beweickii

 - Sighting Locations -

UNITED STATES 
A resident of the West Coast and the States nearest the Mexican border.
 - CALIFORNIA 2022 TRIP: Seen at San Jose,

Further Notes: BirdForum Opus, IUCN Red List, RSPB, Wikipedia, Xeno-canto

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Northern House Wren (Troglodytes aedon)

OTHER NAMES: N/A
Latin Etymology: Troglodytes ("cave dweller") aedon ("aedon")

Adult Northern House Wren (subspecies T. a. parkmanii) at Berkeley, California - August 2022

Featured Subspecies: Troglodytes aedon parkmanii
Weight: 10-12g/kg  /  Length: 11-13cm  /  Wingspan: 15cm
NO UK STATUS / IUCN Red List: Least Concern

The most cosmopolitan native species of the Americas, found from Canada to Pategonia over practically every habitat inbetween. Most of the US and Canadian population is migratory, travelling down to Mexico and South Coast States - the exception to this is the birds I saw here - the California Coast population is the one resident one. There is postulating that the huge range and variety of this species could warrant it being split into at least four other species.

Related Species:
Order: Passeriformes
Family: Troglodytidae
Genus: Troglodytes
SUBSPECIES: T. a. parkamanii, T. a.aedon, T. a. baldwini, T. a. cahooni, T. a.brunneicollis, T. a. compositus, T. a. nitidus, T. a. rufescens, T. a. martinicensis, T. a. mesoleucus, T. a. guardloupensis, T. a. musicus, T. a. grenadensis, T. a. beani, T. a. intermedius, T. a. inquietus, T. a. carychrosu, T. a. clarus, T. a. atopus, striatulus, T. a. columbae, T. a. albicans T. a. tobagoensis, T. a. audax, T. a. puna, T. a. rex, carabayae, T. a. tecellatus, T. a. atacamensis, T. a. musculus, T. a. bonariae, T. a. chilensis

 - Sighting Locations -

UNITED STATES 
Breeds in Northern States, migrating to South Coast ones, resident in coastal California
 - CALIFORNIA 2022 TRIP: Seen at Berkeley

 Further Notes: BirdForum Opus, IUCN Red List, RSPB, Wikipedia, Xeno-canto

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Eurasian Wren (Troglodytes troglodytes)

OTHER NAMES: Wren, Jenny Wren

Latin Etymology: Troglodytes ("cave dweller") troglodytes ("cave dweller")

Adult Eurasian Wren (subspecies T. t. indigenus) at Summer Leys, Northants - April 2026

Featured Subspecies: Troglodytes troglodytes indigenus

Weight: 8-12g  /  Length: 10cm  /  Wingspan: 12-16cm

UK GREEN LIST / IUCN Red List: Least Concern

Although technically the most common bird in Britain, the Wren isn't necessarily the very easiest to see, and it certainly isn't the easiest to photograph. It is the third smallest bird in Britain, after the firecrest and goldcrest but is far more numerous than either. It spends most of it's time on the ground or in low branches, and I sometimes mistake it for a rodent of some sort when I see some creeping little brown thing amoung the leaf litter out the corner of my eye. Though just a little brown bird, its perky stance and twitchy method of movement make it quite characterful, while these same traits play havok with trying to get a camera to autofocus on one.

Related Species:
Order: Passeriformes
Family: Troglodytidae
Genus: Troglodytes
Subspecies: T. t. islandicus, T. t. borealis, T. t. zetlandicus, T. t. fridariensis, T. t. hirtensis, T. t. hebridensis, T. t. indigenus, T. t. troglodytes, T. t. kabylorum, T. t. koenigi, T. t. juniperi, T. t. cypriotes, T. t. hyrcanus, T. t. zagrossiensis, T. t. tianschanicus, T. t. subpallidus, T. t. magrathi, T. t. neglectus, T. t. nipalensis, T. t. idius, T. t. szetschuanus, T. t. talifuensis, T. t. dauricus, T. t. pallescens, T. t. kurilensis, T. t. fumigatus, T. t. mosukei, T. t. ogawae,  T. t. taivanus

- Sighting Locations -

UNITED KINGDOM - The most abundant British bird - a resident breeding species (8,600,000 territories)

 - Seen at many sites including Rutland Water, Trevose Head, Rainham Marshes and Geddington.

Further Notes: BirdForum Opus, IUCN Red List, RSPB, Wikipedia, Xeno-canto

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