Amazing Facts About Birds

                  Amazing Facts about Birds

        The blog Bird of India is mainly about Identification of Indian birds. But in this featured post I am discussing about some Amazing facts about birds which we observe in our daily life but don't know the cause behind it.Beside that , I discussed here about some frequently asked question about Indian birds also.

• Why bird siting on a electric wire do not get shocked by the current?

       

          A bird seated  on a high voltage wire don't get shocked  by the current because they are not good conductors of electricity.The bird does not act as a conducting medium that allows the electric current to pass from the high voltage substance (wire) to the low voltage substance (ground).Their body do not allow electric current to pass through their body.

• Why birds migrate from one place to another?

      Migration means going from one place to another.Birds who lives in the northern hemisphere moves for better weather condition to southern hemisphere when there is winter in northern region.
 Most of the species of the birds migrate following a same shedule and same route. The cause of migration are not clearly known but assumes due to the following factor.
   i) Gonadal change
   ii) Scarcity of food
   iii) Photoperidism
   iv) Seasonal variation
    v) Light

• How many kinds of migration are seen in birds?

      We can divide migration in seven categories according to the type. Those are as bellows.
    1) Latitudinal
    2) Longitudinal
    3) Vertical or Altitudinal
    4)  Partial
    5) Total
    6) Vagrant or irregular
    7) Seasonal

• What is Latitudinal migration of birds?

       The latitudinal migration is the movement from north to south and vice versa. Birds who lives in   the northern hemisphere moves for better weather condition to southern hemisphere when there is   winter in northern region. Arctic Terns breeds in the northern region and migrate to Antartic zone   covering a distance of 22500 km.

• How bird migrate perfectly  following the same route every year?

       Mechanism of migration is a mystery till today. Birds that migrate, follow a definite route and a definite place.It is assume that both the route and goal must have been implanted in their Genetic Code. Ornithologists assume that the migration is guided by different factors.
   a) Earth's magnetic field
   b) Sun
   c) Stars
   d) The "Compass" and the Internal clock of birds

• Why birds do not have bone marrow?

   

 

Pneumatic Bone of Bird

          It is not true that birds do not have bone marrow. But like other animals; bone marrow is not present in every bones of their body. The bone marrow that generates red blood cells is concentrated in some bones and other bones are hollow to make their body light so that they can fly. This hollow bones are called Pneumatic bone