Birds are generally classified into two broad groups initially: Palaeognathae and Neognathae.
The classification below is based on Jarvis, E.D. et al. (2014) with some clade names after Yury, T. et al. (2013).
Palaeognathae
- Struthioniformes (Ostriches)
Neognathae
- Galloanserae (Chickens, grouse, ducks, swans etc)
- Neoaves ( all the other kinds of birds)
Source adapted from: Bird. (2016, January 6). In Wikipedia, The Free Encyclopedia. Retrieved 04:48, January 7, 2016, from https://en.wikipedia.org/w/index.php?title=Bird&oldid=698574297