The grayish baywing (Agelaioides badius), formerly known as the bay-winged cowbird, is a species of bird in the family Icteridae. It is currently placed in the genus Agelaioides but has traditionally been placed in the genus Molothrus. It is found in the northern half of Argentina, Bolivia, Uruguay, Paraguay and southern and central Brazil, The isolated population in north-eastern Brazil is usually now considered a separate species, the pale baywing (Agelaioides fringillarius). The greyish baywing has been recorded as a vagrant in Chile.[2]
| Grayish baywing | |
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| A. b. badius, Pantanal, Brazil | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Aves |
| Order: | Passeriformes |
| Family: | Icteridae |
| Genus: | Agelaioides |
| Species: | A. badius
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| Binomial name | |
| Agelaioides badius (Vieillot, 1819)
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| Synonyms | |
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Molothrus badius (Vieillot, 1819) | |
Description and behavior
editIt has a total length of approximately 18 cm (7 in). It is overall ashy-brown with contrasting black lores and rufous wings. The taxon fringillarius has more black in the face and is overall more rufescent (less ashy).
It is social and commonly seen in small groups. Unlike the "true" cowbirds in the genus Molothrus, this species is not a brood parasite. In contrast, the screaming cowbird is a brood parasite of the grayish baywing, and while adult screaming cowbirds are overall blackish, juvenile screaming cowbirds closely resemble grayish baywings.
Habitat and status
editIt is found in a wide range of semi-open habitats, including scrub and light woodland. It is generally fairly common, and consequently considered to be of least concern by BirdLife International and IUCN.
References
edit- ^ BirdLife International (2017). "Agelaioides badius". IUCN Red List of Threatened Species. 2017: e.T103794964A119445141. doi:10.2305/IUCN.UK.2017-3.RLTS.T103794964A119445141.en. Retrieved 12 November 2021.
- ^ Barros, Rodrigo (2015). "El tordo bayo de Curicó" [The curico's grayish baywing] (PDF). La Chiricoca (in Spanish) (19): 43, note in a Molothrus rufoaxillaris-related paper.
Bibliography
edit- Ridgely, R. S.; & Tudor, G. (1989). The Birds of South America vol. 1 - The Oscine Passerines. Oxford University Press. ISBN 0-19-857217-4
External links
edit- Greyish bawing in Fauna Paraguay.
- Citizen science observations for Grayish baywing at iNaturalist