Marsh seedeater (Sporophila palustris)

loading
Marsh seedeater
loading
Loading more images and videos...

Marsh seedeater fact file

Marsh seedeater description

KingdomAnimalia
PhylumChordata
ClassAves
OrderPasseriformes
FamilyEmberizidae
GenusSporophila (1)

This seed-eating bird is thought to have until very recently been the same species as either the grey-and-chestnut seedeater (Sporophila hypochroma) or the Entre Rios seedeater (Sporophila zelichi), but is in the process of speciation; becoming a genetically different species. Males of this small finch species are distinctive. They have a white throat, cheeks and upper breast, contrasting with reddish-brown underparts and rump. The neck and crown are grey and the wings and tail are dark grey with a white patch at the base of the primaries. Females are dull brown and are not distinguishable from females of other species of Sporophila. The marsh seedeater calls with feisty, high-pitched whistles and ‘chiuu’ sounds (2).

Size
Length: 10 cm (2)
Top

Marsh seedeater biology

Although normally active during the day, the male may sing at night during the breeding season, as he tries to attract females and defend his territory. When singing, the male chooses a prominent spot, points his beak vertically and ruffles his feathers. He will also fight with and chase away other males. Whilst thought to be mainly socially monogamous, marsh seedeaters are known to mate promiscuously when the population is at high density. Once laying has taken place, pairs remain faithful; the female incubates the eggs alone, but the male joins her in feeding and caring for the nestlings (3).

The marsh seedeater balances on tall grasses to pick seeds from the seed heads, and consumes no other food (3).

Top

Marsh seedeater range

The marsh seedeater breeds in Argentina, Brazil, Uruguay and possibly southeast Paraguay. It winters in Brazil and migrants have been seen in east Paraguay and north Argentina (2).

Top

Marsh seedeater habitat

Breeding amongst wet grasslands and marshes, the marsh seedeater is less fastidious about its habitat in winter and during the migration, inhabiting both wet and dry grasslands (2).

Top

Marsh seedeater status

The marsh seedeater is classified as Endangered (EN C2a(i)) on the IUCN Red List 2004 (1).

IUCN Red List species status – Endangered

Top

Marsh seedeater threats

The main threat to this species is collection for the caged bird trade. This practice has severely reduced population numbers and has resulted in the loss of the marsh seedeater from many areas of Argentina, and it seriously threatens the survival of populations in Uruguay. Breeding site habitat degradation due to intensive cattle grazing, afforestation with eucalyptus and pine, pesticide contamination, and drainage for agriculture, particularly in southeast Uruguay, have contributed to population declines. Mechanised agriculture, invasive grasses and annual burning are proving detrimental to the marsh seedeater in its wintering habitat (2).

Top

Marsh seedeater conservation

The marsh seedeater is legally protected in Brazil and Uruguay and collection is illegal in Argentina. It breeds in Potrerillo de Santa Teresa Reserve, Uruguay and Ibera Provincial Reserve in Argentina. It winters in Emas National Park, Brazil and migrating birds are found in several reserves in Paraguay and Argentina. Crucial to the survival of this species is the effective prohibition of trapping in all range states, and the removal of incentives to afforest with eucalyptus and pine. It may also benefit from being added to the Convention on Migratory Species (CMS or Bonn Convention) (2).

View information on this species at the UNEP World Conservation Monitoring Centre.
Top

Authentication

This information is awaiting authentication by a species expert, and will be updated as soon as possible. If you are able to help please contact: arkive@wildscreen.org.uk
Top

Glossary

Monogamous
Having only one mate during a breeding season, or throughout the breeding life of a pair.
Primaries
In birds, the outer flight feathers.
Top

References

  1. IUCN Red List (June, 2005)
    http://www.redlist.org
  2. BirdLife International (June, 2005)
    http://www.birdlife.org/datazone/search/species_search.html?action=SpcHTMDetails.asp&sid=9550&m=0
  3. Olendorf, D., Bock, W.J., Jackson, J.A. and Hutchins, M. (2002) Grizmek’s Animal Life Encyclopedia Volume II: Birds VI. Gale Group, Minnesota.
X
Close

Image credit

Marsh seedeater  
Marsh seedeater

© James C Lowen

James C Lowen
Tel: 00 54 11 4790 8582
lowen.james@gmail.com
http://www.pbase.com/james_lowen

X
Close

Link to this photo

ARKive species - Marsh seedeater (Sporophila palustris) Embed this ARKive thumbnail link ("portlet") by copying and pasting the code below.

Terms of Use - The displayed portlet may be used as a link from your website to ARKive's online content for private, scientific, conservation or educational purposes only. It may NOT be used within Apps.

Read more about

X
Close

MyARKive

MyARKive offers the scrapbook feature to signed-up members, allowing you to organize your favourite ARKive images and videos and share them with friends.

Play the Team WILD game:

Team WILD, an elite squadron of science superheroes, needs your help! Your mission: protect and conserve the planet’s species and habitats from destruction.

Conservation in Action

Which species are on the road to recovery? Find out now »

Help us share the wonders of the natural world. Donate today!

Blog