Yellow-shouldered blackbird
Agelaius xanthomus (P. L. Sclater, 1862)
The yellow-shouldered blackbird (Agelaius xanthomus) is a species in the family Icteridae, order Passeriformes. Recorded adults weigh about 38.4 g and live up to 12.6 years. Its IUCN Red List status is Endangered.

Quick facts about the yellow-shouldered blackbird
- Weight
- 38.4 gsrc for Weight
- Length
- Not recorded
- Lifespan
- 12.6 yearssrc for Lifespan
- Diet
- Invertivoresrc for Diet
- Main food
- Not recorded
- Habitat
- wetlandsrc for Habitat
- Young per litter or clutch
- 3src for Young per litter or clutch
- Lifestyle
- Perchingsrc for Lifestyle
- Migration
- Sedentarysrc for Migration
- Conservation status
- Endangered (IUCN)src for Conservation status
- Countries on record
- Not recorded
Where does the yellow-shouldered blackbird live?
Not recorded
What is the yellow-shouldered blackbird?
The yellow-shouldered blackbird (Agelaius xanthomus), known in Puerto Rican Spanish as mariquita de Puerto Rico or capitán, is a species of blackbird endemic to Puerto Rico. It has black plumage with a prominent yellow patch on the wing. Adult males and females are of similar appearance. The species is predominantly insectivorous.
From the Wikipedia article “Yellow-shouldered blackbird” (en.wikipedia.org/w/index.php?title=Yellow-shouldered_blackbird&oldid=1380707901), by Wikipedia contributors, licensed under CC BY-SA 4.0 (creativecommons.org/licenses/by-sa/4.0). This block is kept separate from our own text.
Is the yellow-shouldered blackbird endangered?
The yellow-shouldered blackbird is listed as Endangered on the IUCN Red List: it faces a very high risk of extinction in the wild.
- LCLeast Concern
- NTNear Threatened
- VUVulnerable
- ENEndangered
- CRCritically Endangered
- EWExtinct in the Wild
- EXExtinct
Category via Wikidata (CC0). Find the full assessment on the IUCN Red List. See all Endangered species. What the categories mean.
How is the yellow-shouldered blackbird classified?
- kingdomAnimalia
- phylumChordata
- classAves
- orderPasseriformes
- familyIcteridae
- genusAgelaius
- SpeciesAgelaius xanthomus (P. L. Sclater, 1862)
Synonyms Agelaius chrysopterus, Icterus xanthomus
Other names and names in other languages (34)
- شحرور أصفر الكتفArabic
- sergent de muscle grocCatalan
- Sergent d'espatlles groguesCatalan
- vlhovec portorickýCzech
- tresglen ysgwyddfelenWelsh
- Gulskuldret StærlingDanish
- GelbschulterstärlingGerman
- Flavŝultra agelajoEsperanto
- portorika nigrikteroEsperanto
- Sargento puertorriqueñoSpanish
- CapitánSpanish
- MariquitaSpanish
- سیاهمرغ شانهزردPersian
- puertoriconturpiaaliFinnish
- Carouge de Porto RicoFrench
- žutokrili vranjakCroatian
- sárgavállú csirögeHungarian
- Ittero spallegialleItalian
- キガタハゴロモガラスJapanese
- geltonpetis juodasis trupialasLithuanian
- GeelschoudertroepiaalDutch
- gulskuldertrupialNorwegian
- epoletnik lagunowyPolish
- graúna-de-ombros-amarelosPortuguese
- sargento-d'ombros-amarelosPortuguese
- Желтокрылый трупиалRussian
- Желтоплечий чёрный трупиалRussian
- vlhovec lagúnovýSlovak
- Američki kos žutih ramenaSerbian
- gulskuldrad trupialSwedish
- Sarı Omuzlu KaratavukTurkish
- еполетник жовтоплечийUkrainian
- 黃肩黑鸝Chinese
- 黄肩黑鹂Chinese
Relatives of the yellow-shouldered blackbird
Other species in the same genus Agelaius.

Red-winged blackbird
Agelaius phoeniceus

Tricolored blackbird
Agelaius tricolor

Tawny-shouldered blackbird
Agelaius humeralis

Red-shouldered blackbird
Agelaius assimilis
CompareYellow-shouldered blackbird vs Red-winged blackbirdYellow-shouldered blackbird vs Tricolored blackbirdYellow-shouldered blackbird vs Tawny-shouldered blackbirdYellow-shouldered blackbird vs Red-shouldered blackbird
Common questions
Answered only where our data holds the answer.
How big is the yellow-shouldered blackbird?
An adult yellow-shouldered blackbird weighs 38.4 g, according to values recorded on Wikidata.
Is the yellow-shouldered blackbird endangered?
The yellow-shouldered blackbird is listed as Endangered on the IUCN Red List, meaning it faces a very high risk of extinction in the wild.
How long does the yellow-shouldered blackbird live?
The yellow-shouldered blackbird has a recorded lifespan of 12.6 years.
What kind of animal is the yellow-shouldered blackbird?
The yellow-shouldered blackbird (Agelaius xanthomus) belongs to the family Icteridae in the order Passeriformes.
Sources and how to cite this page
Data as of 2026-11-11. How this page is put together.
- An amniote life-history database to perform comparative analyses with birds, mammals, and reptiles · CC0 1.0 · E096-269
Myhrvold, N.P., Baldridge, E., Chan, B., Sivam, D., Freeman, D.L. & Ernest, S.K.M. (2015) An amniote life-history database to perform comparative analyses with birds, mammals, and reptiles. Ecology 96: 3109. https://doi.org/10.1890/15-0846R.1. Data: https://doi.org/10.6084/m9.figshare.3563457.v1 - AVONET: morphological, ecological and geographical data for all birds · CC BY 4.0 · v7
Tobias, J.A. et al. (2022) AVONET: morphological, ecological and geographical data for all birds. Ecology Letters 25: 581–597. https://doi.org/10.1111/ele.13898. Data: https://doi.org/10.6084/m9.figshare.16586228.v7 - Catalogue of Life eXtended Release · CC BY 4.0 · 2026-10-16 XR
Catalogue of Life (2026). Catalogue of Life eXtended Release, version 2026-10-16 XR. Catalogue of Life Foundation, Amsterdam, Netherlands. https://doi.org/10.48580/dgzlf - Wikimedia Commons · per file (CC0 / public domain / CC BY green, CC BY-SA amber, anything else not displayed) · 2026-11-11
Wikimedia Commons contributors. Wikimedia Commons. https://commons.wikimedia.org (each file credited to its author under its own licence). - Wikidata · CC0 1.0 · 2026-11-11
Wikidata contributors. Wikidata. https://www.wikidata.org (data retrieved via the Wikidata Query Service). - Wikipedia (English) · CC BY-SA 4.0 · 2026-11-11
Wikipedia contributors. Wikipedia, The Free Encyclopedia. https://en.wikipedia.org (text under CC BY-SA 4.0; each block names its article and revision).
Embed a card for this animal on your own site
Copy this code. The card shows the photo with its credit, key facts and a link back to this page.
CreatureData. (2026). Yellow-shouldered blackbird (Agelaius xanthomus). Retrieved from https://creaturedata.com/animals/yellow-shouldered-blackbird
“Yellow-shouldered blackbird (Agelaius xanthomus).” CreatureData, 2026, https://creaturedata.com/animals/yellow-shouldered-blackbird.
@misc{yellow_shouldered_blackbird_2026,
title = {Yellow-shouldered blackbird (Agelaius xanthomus)},
author = {{CreatureData}},
year = {2026},
url = {https://creaturedata.com/animals/yellow-shouldered-blackbird},
note = {Data as of 2026-11-11}
}