Estrildid finch

Estrildid finches
Red-browed finch, Neochmia temporalis
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Passeriformes
Suborder: Passeri
Family: Estrildidae
Illiger, 1811
Genera

See text

The estrildid finches are small passerine birds of the Old World tropics and Australasia. They can be classified as the family Estrildidae (weaver-finch), or as a subfamily within the family Passeridae, which strictly defined comprises the Old World sparrows.[1]

They are gregarious and often colonial seed eaters with short, thick, but pointed bills. They are all similar in structure and habits, but vary widely in plumage colours and patterns.

All the estrildids build large, domed nests and lay five to ten white eggs. Many species build roost nests. Some of the fire-finches and pytilias are hosts to the brood-parasitic indigobirds and whydahs, respectively.

Most are sensitive to cold and require warm, usually tropical, habitats, although a few have adapted to the cooler climates of southern Australia.

The smallest species of the family is the Shelley's oliveback (Nesocharis shelleyi) at a mere 8.3 centimetres (3.3 in), although the lightest species is the black-rumped waxbill (Estrilda troglodytes) at 6 g (0.21 oz). The largest species is the Java sparrow (Padda oryzivora), at 17 cm (6.7 in) and 25 g (0.88 oz).

Species list

Evolution

Origin of estrildid finches

The phylogeography and possible origin of estrildid finches have been studied. The following scheme may be useful to represent a hypothetical origin in India in the last and stronger Himalayas uplift (16.5 million years ago), when the monsoon rains regime was established in India (see figure). The conclusions from this study[2][3] are:

Estrildid finches' phylogenetic tree

References

  1. ↑ Christidis L, Boles WE (2008). Systematics and Taxonomy of Australian Birds. Canberra: CSIRO Publishing. p. 177. ISBN 978-0-643-06511-6.
  2. 1 2 3 Arnaiz-Villena, A; Ruiz-del-Valle, V.; Gomez-Prieto, P.; Reguera, R.; Parga-Lozano, C; Serrano-Vela, J.I. (2009). "Estrildinae Finches (Aves, Passeriformes) from Africa, South Asia and Australia: a Molecular Phylogeographic Study"(PDF). The Open Ornithology Journal 2: 29-36. (doi:10.2174/1874453200902010029).
  3. ↑ Arnaiz-Villena, A; Gómez-Prieto P; Ruiz-de-Valle V (2009). "Phylogeography of finches and sparrows". Nova Science Publishers. ISBN 9781607418443.
  4. ↑ Sibley CG, Monroe BL (1990). Distribution and Taxonomy of Birds of the World. Yale University Press
  5. 1 2 Arnaiz-Villena, A; Gomez-Prieto, P.; Serna-Ayala; Ruiz-del-Valle, V. (2009). "Origen de los estríldidos".

External links

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