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The zebra finch genome was the second bird genome to be sequenced, in 2008, after that of the chicken. [32] The Australian zebra finch uses an acoustic signal to communicate to embryos. It gives an incubation call to its eggs when the weather is hot—above 26 °C (79 °F)—and when the end of their incubation period is near.
Although the Sunda zebra finch was described first, the Australian zebra finch is the far more famous member of the genus, due to its status as a popular pet as well as a model organism for the wider study of birds. [11] The Australian zebra finch is used worldwide in several research fields (e.g. neurobiology, physiology, behaviour, ecology ...
Finches are a form taxon composed of unrelated but similar-looking songbirds within the family Fringillidae of the superfamily Passeroidea. The family Fringillidae includes numerous birds not called "finches" in their common names, including the crossbills , siskins , and waxbills .
Only male zebra finches sing. [4] Each finch has an individual song. [ 4 ] Between the ages of 25 and 90 days old, young zebra finches learn to sing by copying the songs of adults, and sometimes by copying the songs of other juveniles.
The family Estrildidae was introduced in 1850 by the French naturalist Charles Lucien Bonaparte as "Estreldinae", a spelling variant of the subfamily name. [2] [3] In the list of world birds maintained by Frank Gill, Pamela Rasmussen and David Donsker on behalf of the International Ornithological Committee (IOC) the family contains 140 species divided into 41 genera. [4]
The double-barred finch is granivorous and highly gregarious. Nests are built in grass, bushes or low trees, with four to six eggs laid per clutch. The call is a soft tet or a louder peew, and the song is a soft fluting, which is somewhat like the zebra finch. [8]