Birds belong to the family of Aves , they are also known as avian dinosaurs

Main Characteristics of birds are

·         They are endothermic vertebrates,

·         They have feathers  & toothless beaked jaws, high metabolic rate, a four-chambered heart

·         They lay of hard-shelled eggs,

·         They have hollow bones hence a lightweight but strong skeleton.

A birds anatomy is very complex and perhaps the best engineering model of GOD. Here we will look at parts that are external and used for Bird Identification only

A bird is identified by combination of presence/ absence of various features in its external anatomy. The external parts of a bird are as follows

parts of bird.jpg


This is further subdivided into Head & Neck, Breast, Wings, Legs, Tail.

Head & Neck

The main parts of this region are


creast of Striated Laughingthrush


Crown: Top of the head is called the crown. Some birds have a flat crown while some can have a tuft at the back, some can have crest that are permanent or temporary.




Eyes : This is like an human eye but minus the eyelids. There is the Cornea & Eye ring, just like mammals. The colour of these parts is important for identification of birdeyes of crestless changeable hawk eagle


Beak : This consists of upper mandible- MAXILLA and lower mandible…The shape and colour help in identification of the bird (





Lores : This is the area between where the beak joins the face and where the eye startslores richards Pipit


Supercilium : The eyebrow region is called supercilium


Eye line : The line that extends from back of the eye towards the nape



Ears : Placed on either sides of the face  usually covered with feathers. An auricular, or ear covert, are the feathers that cover the ears of a bird_51I8916-1 white eared Bulbul





Nape : The neck  region, Back part pf crownIMG_1059-1 Rock Bunting

Throat/ Chin : The area below the face that joins the breast. A distinct line at the lower edge of the auricular is called amustachial stripe. A streak downward from the bill, behind the throat, is called a malar stripe




 Breast : This is the region comprising of Chest & Belly. This connects the vent to the Throat. Presence/absence  of streaks, Colour, size are some features that help in Bird identification. _87A8338-1 Red Breasted parakeetThis area plays important part in identification of the growth of bird from Juvenile to Adulthood




Wings : The wings are perhaps the most important feature for identification. They are covered with flight feathers ( Remiges)  They are broken into three area Primary, Seconday and tertiary. falcon wingsThese areas are covered with protective feathers and they are called Coverts  hence Primary covert, Secondary covert  and Median coverts.. The pattern on the wings on top as well as at the base helps in Identification of birds. (For further reference



Tail, Rump and Vent:

Tail :Tail in a bird acts like a rudder and gives stability and direction to the birds flight. It has secondary uses like in Mating display and attaining of adulthood etc. It is covered by feathers called Retrices. _51I3744 Asian Paradise FlycatcherThe shape , length and the relation ship between Tail feathers to the tail is important Identification features. . (For further reference  Rump : It is the body part immediately above the tail. The colour of Rump  is important feature in Bird Identification



Vent : This is the part below the tail through which the bird defecates. Usually hidden by tail but is also used to identify birds  and some are named after their vents ( Red-vented Bulbul)

Legs :

Most birds are digitigrade animals, which means that they walk on their toes, not the entire foot. The Bird legs consist of many fused bones and are similar to Mammal legs in bone structure. 287A1302 bronze tailed JacanaThe legs perform various tasks and are adapted to the birds lifestyle. The birds have strong toes that end in Claws in most of the birds. The claws size, arrangement of claws and in some cases the colour of the claws help in Bird Identification.


Text Source :  Wikipedia, Beat About the bush -Birds by Trevor Carnaby

Pictures : Saravanan Janakarajan