Birds are in the class Aves There are many orders of birds within the class Aves.
The Class for all birds is Aves...from this stem the many orders of the different birds.
Birds have their own class named Aves (ah-VAES) in the phylum Chordata and in kingdom Animalia. In it are many diffrerent orders of birds.
The major "groups" that you are referring to are probably the different orders of birds, so here goes:StruthioniformesTinamiformesCraciformesGalliformesAnseriformesTurniciformesPiciformesGalbuliformesBucerotiformesUpupiformesTrogoniformesCoraciiformesColiiformesCuculiformesPsittaciformesApodiformesTrochiliformesMusophagiformesStrigiformesColumbiformesGruiformesCiconiiformesPasseriformes
birds with flippers are most often adapted for water some of these birds that fit in these orders are... anseriformes, this is the duck, goose and swan order but it does include some strange faimilys in this order charadriiformes, this is the seagull and auk order shpenisciformes, this is the penguin order their are other individual birds with flippers wich belong to orders other than this but these are the main orders.
Executive Orders has 874 pages.
Last Orders has 304 pages.
34 orders
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Nicholas Aylward Vigors has written: 'Observations on the natural affinities that connect the orders and families of birds: togethers with description of a new species of scolopax ...' -- subject(s): Birds
10 birds