Songbird

**Songbirds** are the main group of birds in the order Passeriformes. They are the suborder **Passeri**, sometimes called 'oscines' (Latin for songbird). They are a genuine clade.

There are about 4000 species of songbird. Their *syrinx* (vocal organ) is able to produce varied and beautiful singing. They are a *very* successful group of birds, in fact they are the dominant birds on Earth today.

It seems songbirds evolved 50 million years ago in the part of Gondwana which later became Australia, New Zealand, New Guinea and Antarctica. They then spread around the world.

## Song 
Their song is mainly territorial: it communicates the identity and whereabouts of an individual to other birds of the same species. It also signals sexual intentions. Female preference in some populations is based on the extent of a male's song repertoire. The larger a male's repertoire, the more females a male individual attracts. 

Bird calls are also used for alarms and contact. They are especially important in birds that feed or migrate in flocks. Although almost all birds give calls of some sort, well-developed songs are only given by a few lines outside the songbirds.

## Families 
### Corvida 
This is now known to be a paraphyletic group and so it is not used in modern systematics.
*Menuridae
** Menuridae: lyrebirds
**Atrichornithidae:  scrub birds
*Bowerbirds and Australian treecreepers
** Ptilonorhynchidae:  bowerbirds
** Climacteridae:  Australian treecreepers
* Meliphagoidea: honeyeaters and allies
** Maluridae:  fairy-wrens, emu-wrens and grasswrens
** Meliphagidae:  honeyeaters and chats
** Acanthizidae:  pardalotes, scrubwrens, thornbills, and gerygones
* Australopapuan babblers
** Pomatostomidae:  Australasian babblers
* Logrunners
** Orthonychidae: logrunners

* Other basal lines
** Cinclosomatidae:  whipbirds and allies
** Neosittidae:  sittellas
** Pachycephalidae:  whistlers, shrike-thrushes, pitohuis and allies
** Dicruridae:  monarch flycatchers and allies
** Campephagidae:  cuckoo shrikes and trillers
** Oriolidae:  orioles including figbird
** Artamidae:  woodswallows, butcherbirds, currawongs and Australian magpie
** Paradisaeidae:  birds of paradise
** Corvidae:  crows, rooks, ravens, magpies, and jays
** Corcoracidae:  white-winged chough and apostlebird
** Irenidae:  fairy-bluebirds
** Laniidae:  shrikes
** Vireonidae:  vireos

### Passerida 
This is accepted as a clade.
* Petroicidae:  Australian robins
* Alaudidae: larks
* Chloropseidae:  leafbirds
* Aegithinidae:  ioras
* Picathartidae:  rockfowl
* Eupetidae: rail-babbler
* Bombycillidae:  waxwings and allies
* Ptilogonatidae:  silky flycatchers
* Cinclidae:  dippers
* Motacillidae:  wagtails and pipits
* Prunellidae:  accentor
* Melanocharitidae:  berrypeckers and longbills
* Paramythiidae:  tit berrypecker and crested berrypeckers
* Passeridae:  true sparrows
* Estrildidae:  estrildid finches (waxbills, munias, etc.)
* Parulidae:  New World warblers
* Thraupidae:  tanagers and allies
* Peucedramidae:  olive warbler
* Fringillidae:  true finches
* Cardinalidae: cardinals
* Drepanididae:  Hawaiian honeycreepers
* Emberizidae:  buntings and American sparrows
* Nectariniidae:  sunbirds
* Dicaeidae:  flowerpeckers
* Mimidae:  mockingbirds and thrashers
* Sittidae:  nuthatches
* Certhiidae:  treecreepers
* Troglodytidae:  wrens
* Polioptilidae:  gnatcatchers
* Paridae:  tits, chickadees and titmice
* Aegithalidae:  long-tailed tits
* Hirundinidae:  swallows and martins
* Regulidae:  kinglets
* Pycnonotidae:  bulbuls
* Phylloscopidae: leaf-warblers and allies. Recently split from Sylviidae.
* Sylviidae:  Old World warblers
* Hypocoliidae:  Hypocolius
* Cisticolidae:  cisticolas and allies
* Icteridae:  American blackbirds, New World orioles, grackles and cowbirds.
* Zosteropidae:  white-eyes
* Timaliidae:  babblers
* Muscicapidae:  Old World flycatchers and chats
* Turdidae:  thrushes and allies
* Sturnidae:  starlings

## References 
## Other websites 
* Oscines  Tree of Life web project article July 31, 2006
* Pictures of Songbirds