TYPES OF BIRDS
There are over 9,000 species of living birds, with a great
diversity of size, form, colour, and behaviour. But their basic structure is
so very similar that these show no more differences than there are within the
90 species of known primates. Birds are classified mainly by their external
form, although DNA structure and biochemical methods have recently been employed
to reassess certain relationships. There are 27 living orders, and 2 recently
extinct orders of birds, but the groupings of these into subclasses is a matter
of some dispute. One of the greatest difficulties in the classification of birds,
is that their structure is very uniform. There are many different types of birds
that you can keep as pets such as parrots, love birds, pigeons, doves, canaries
etc. Here we are listing some such birds and their subclasses.
|
|
