Yellow-shouldered Blackbird (Agelaius xanthomus)

Family
Icteridae (New World Blackbirds)

Size
20 - 23 cm

First Described (Guide)
(Sclater, 1862)

Habitat
Mangroves, pastures, coconut and palm-stands, cactus scrub, coastal cliffs, and rarely woodland. Commonest near the coast.

Range (Guide)

Puerto Rico (B) (NB).

Rarity Status
Currently this species is not classified as a rarity in this country OR information has not been updated.

Population
Estimated population is 1,300 (2010) and decreasing.

Status EN
Brood-parasitism by Shiny Cowbird (Molothrus bonariensis), competition for nesting areas by Caribbean Martin (Progne dominicensis), habitat loss through clearance for agriculture, nest-predation by the Pearly-eyed Thrasher (Margarops fuscatus) and elevated mortality by introduced carnivores such as Indian Mongoose (Herpestes auropunctatus), are the main threats.

For more information see BirdLife International Species Factsheet.

Voice
Various, including whistles, squawks, squeaks and rasping notes.

Xeno-Canto Sound Files (more (8)...)

Yellow-shouldered Blackbird (Agelaius xanthomus) [XC713822]
by id from La Parguera, Palmarejo, Lajas, Puerto Rico (call)

Yellow-shouldered Blackbird (Agelaius xanthomus) [XC308509]
by Daniel Lane from Lajas, Parguera, Lajas, Puerto Rico (call)

Subspecies
Closely related to and possibly forming a superspecies with Tawny-shouldered Blackbird (Agelaius humeralis).

The following 2 subspecies are recognised:

xanthomus (Sclater, 1862) - Puerto Rico.
monensis Barnes Jr, 1945 - Mona I, off western Puerto Rico.

Similar Species
Hispaniolan Oriole (Icterus dominicensis) has finer bill and yellow rump and undertail. Greater Antillean Grackle (Quiscalus niger) is larger and all black.

References
See References.

Files:

JPG files for Yellow-shouldered Blackbird (Agelaius xanthomus) - 10 files

More Information

BirdLife International

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BirdLife International Species Factsheet.

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