Body Coverings
The five groups are Fish, Amphibians, Reptiles, Birds, Mammals
The major "groups" that you are referring to are probably the different orders of birds, so here goes:StruthioniformesTinamiformesCraciformesGalliformesAnseriformesTurniciformesPiciformesGalbuliformesBucerotiformesUpupiformesTrogoniformesCoraciiformesColiiformesCuculiformesPsittaciformesApodiformesTrochiliformesMusophagiformesStrigiformesColumbiformesGruiformesCiconiiformesPasseriformes
The geographic isolation of the birds on separate islands. By: Yoshi
animals are put into groups because they have different features for example snakes are scally,horses are furry and so on and so fourth like if you dint have groups you would mistake worms for a snakes because they have the same features but there in different groups.
Birds are difficult to classify because they must be categorized by their genetic makeup. Sometimes there are over eight classifications for a specific bird.
A flock of crows are call a murder , a storytelling , or a flock. What are other flocks of birds called?
A physical representation to identify specific animals in a group, for example if you are trying to identify a specific bird you could use a dichotomous key of all birds to find one.
snake and lizard in reptiles ,robin and goose in birds ,dog ,cow and whale in mammals
if it is their own kind and a different gender, they do it to breed, otherwise to mob other birds in large groups or to get them away from their nest.
Scientists classify animals into two large groups based on wether the animal has a backbone or not. shtytrsywsysys
What are the major groups of sea birds
Feathers - the only outwardly obvious characteristic unique to birds.