Saturday 15 June
Red-breasted blackbird (Sturnella militaris)
Red-breasted blackbird fact file
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Red-breasted blackbird description
The red-breasted blackbird is so-named for the spectacular pinkish-red patch found on the breast and throat of the adult male (3). With the exception of two pinkish patches at the bend of the wing, the rest of the male’s feathers are black, with lighter brown edges that are progressively worn away as the bird ages, eventually resulting in a uniform black appearance. The female has less striking plumage, with mostly brown feathers on the body and head, and a hint of reddish colouration on the breast. Immature red-breasted blackbirds resemble the female, but lack the reddish breast colouration altogether, and have black streaked underparts (2).
- Length: 17 – 19 cm (2)
Red-breasted blackbird biology
The red-breasted blackbird is most commonly encountered foraging for insects and seeds in bushes, low trees and sometimes on the ground (3) (4). Occupying an open environment means that this species is vulnerable to aerial predators such as hawks, hence when alarmed, the red-breasted blackbird will produce a pist call to alert other conspecifics of danger (2).
During the breeding season (March to mid-November in Trinidad), other vocalisations are produced, such as a tsi-li-li-EE song made by the male during display flights (4) (5). After mating a deep, cup-shaped nest is constructed from grass stems lined with finer grass, which is placed on the ground and hidden amongst vegetation (2) (3). A clutch of two to four eggs is normally laid, but frequently additional eggs are deposited by the glossy cowbird, a brood parasite (5). These eggs are then unwittingly incubated and brooded by the red-breasted blackbird, often to the detriment of its own offspring (5) (6).Top
Red-breasted blackbird range
The red-breasted blackbird is found throughout almost all of central and northern South America, from Argentina, northwards through Brazil and neighbouring countries, to Panama and Costa Rica. It is also found on the islands of Trinidad and Tobago (1) (2).Top
Red-breasted blackbird habitatTop
Red-breasted blackbird status
Classified as Least Concern (LC) on the IUCN Red List (1).Top
Red-breasted blackbird threats
There are currently no major threats to this species’ survival (1). Indeed, unlike most species, the red-breasted blackbird is actually benefitting from the catastrophic levels of deforestation occurring in South America. It readily colonises the increasingly widespread areas of open habitat, cultivated fields and airports, and its range is appears to be expanding (2).Top
Red-breasted blackbird conservationTop
Find out more
To learn more about conservation initiatives in the red-breasted blackbird’s range visit:
- The Nature Conservancy:
- Conservation International
For more information on this and other bird species please see:
- BirdLife International:
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- Individuals belonging to the same species.
- IUCN Red List (May, 2009)
- Sick, H. (1993) Birds in Brazil: A Natural History. Princeton University Press, New Jersey.
- de Schauensee, R. and Phelps, W.H. (1978) A Guide to the Birds of Venezuela. Princeton University Press, New Jersey.
- Jaramillo, A. (1999) New World Blackbirds: The Icterids. A and C Black, London.
- Herklots, G.A.C. (1961) The Birds of Trinidad and Tobago. Collins, London.
- Payne, R.B. (1977) Ecology of brood parasitism in birds. Annual Reviews in Ecology and Systematics, 8: 1 - 28.
- World Database on Protected Areas (May, 2009)
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