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[[Category:Birds]][[Category:Rollandia]] | [[Category:Birds]][[Category:Rollandia]] |
Latest revision as of 23:55, 17 March 2023
- Rollandia rolland
Identification
Sometimes called Golden Grebe
L. 28-36 cm
- Medium-sized
- Prominent crest on rear crown
Adult Breeding
- Blackish-brown above
- Glossed green
- Rufous rump
- Chestnut below
- Flanks mottled blackish
- White below
- Black head and neck
- Narrow white line over eye broadening to white fan behind eye
- Red eye
- Black bill and legs
Adult Non-breeding
- Blackish-brown upperparts and crest
- Browner, tinged reddish, neck and breast
- Whitish throat and underparts
- Lacks crest
Juvenile
Similar to non-breeding adult but bill browner and has stripes across cheeks.
Flight
Shows broad white bar on trailing edge of secondaries.
Distribution
South America from Peru, Bolivia, and southern Brazil south to Tierra del Fuego, also breeds on the Falkland Islands.
Taxonomy
Three subspecies are recognised, differing mainly in size. Nominate race, rolland (largest and darkest) is found on the Falkland Islands, chilensis (smallest) from 10 dg S in Peru south to Tierra del Fuego and from southern Brazil and Paraguay southwards, and morrisoni (intermediate) in the highlands of Peru and Bolivia.
Habitat
Upland and lowland ponds and rivers, sometimes on estuarine waters and sheltered bays in non-breeding season.
Behaviour
Breeding
Mid-October to January in Falkland Islands. Nest is a heap of floating vegetation in rushes or under a streamside overhang. Eggs: 1-3, whitish initially soon becoming stained.
Diet
Small fish, crustaceans and aquatic plants taken in 15-20 second dives.
Voice
Creaking and jarring calls when breeding.
References
- Clements, James F. 2007. The Clements Checklist of Birds of the World. 6th ed., with updates to October 2007. Ithaca: Cornell University Press. ISBN 9780801445019
- Erize et al. 2006 Birds of South America, non-passerines. Princeton Illustrated Checklists, Princeton, New Jersey, USA. ISBN 0-691-12688-7
Recommended Citation
- BirdForum Opus contributors. (2024) White-tufted Grebe. In: BirdForum, the forum for wild birds and birding. Retrieved 18 October 2024 from https://www.birdforum.net/opus/White-tufted_Grebe
External Links
GSearch checked for 2020 platform.1