Estrildid finch

Estrildid Finches
Neochmia temporalis Red-browed Firetail
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Passeriformes
Suborder: Passeri
Family: Passeridae
Illiger, 1811
Subfamily: Estrildinae
Genera

Many: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 sub-group within the family Passeridae, which also includes the true 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 pattern.

All the estrildids build large domed nests and lay 5–10 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 a warm, usually tropical, habitat, although a few have adapted to the cooler climates of southern Australia.

The smallest species of the family is the Fernando Po Oliveback (Nesocharis shelleyi) at a mere 8.3 cm (3.3 inches), although the lightest species is the Black-rumped Waxbill (Estrilda troglodytes) at 6 g. The largest species is the Java Sparrow (Padda oryzivora), at 17 cm (6.7 inches) and 25 g.

Contents

Species list

Origin of Estrildinae[2][3]

The phylogeography and possible origin of Estrildinae finches have been studied[4]. The following scheme may be useful to represent an hypothetical origin in India in the last and stronger Himalayas uplift (16.5 million years ago),when monsoon rains regime established in India (see figure). The conclusions from this study[4] are:

Evolutive conclusions[3][4]

References

  1. ^ Christidis L, Boles WE (2008). Systematics and Taxonomy of Australian Birds. Canberra: CSIRO Publishing. pp. 177. ISBN 9780643065116. 
  2. ^ Sibley CG, Monroe BL (1990). Distribution and Taxonomy of Birds of the World. Yale University Press
  3. ^ a b Arnaiz-Villena,A; Gomez-Prieto,P.; Serna-Ayala; Ruiz-del-Valle,V. (2009). "Origen de los estríldidos".
  4. ^ a b c 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).

External links