Knowing Bird Migration
In the northern hemisphere began
to enter the winter and diminished food sources that's when millions of birds
perform an annual tradition to fly to the southern hemisphere it is known with
the migratory birds. Why migratory birds is not avoiding cold temperatures
merely but also looking for food to continue his life due to the cold
temperatures causing reduced their food reserves.
Each year, thousands of raptor
birds migrate through the southern part of the Earth with two lines, the first
of which, Mainland to the East (eastern inland corridor), namely the line
traversed the raptor from southeastern Siberia through China toward the
peninsula Malaysia and Indonesia landed on Java, Lombok, Bali. The second,
Pacific Coast (coastal pacific corridor) line that will pass birds from Russia
and East past the islands of Japan and Taiwan then South Filiphina and pulled
over in the area of Sunda is great and in migration once they can fly up to a
distance of 15,000 km of travel time 50 to 70 days.
Raptor migration journey time can
fly at a time during the day and at night they are seeking a haven to relax and
rest in a place they can spend up to 15 days to find then then continue
perjalananya back. The raptor uses an internal clock that they have to be able
to detect the location of the Sun and Earth maget. By using the help of a hot
air they can do high flying and gliding and this can save their energy on the
way to migration to destination.
Read more:
More than 50 types of raptor at
the annually migrating to South East Asia, 19 of them to Indonesia before
eventually returning to the habitat berbiaknya. Like the crested honey
buzzard-pernis ptilorhyncus Asia "honey", Chinese sparrowhawk accipiter
soloensis "," sparrowhawk Accipiter gularis "Nipon" baza
aviceda lephotes "black", "the gray Eagle butastur indicus"
and also the Peregrine Falcon falco peregrines "crater". And an
estimated thousands of birds migrate to warmer areas to Asia including
Indonesia. A variety of threats are always lurking the migrant birds ranging
from natural disasters, climate, forest damage due to poaching over the
function of land and fires inhibit the migration of the birds.
Indonesia as one of the very
important region and became the main route various types of migrant birds, join
the experience. The destruction of forests in Indonesia that continue to occur
resulting in a raptor who migrated to Indonesia decreased. The current
migratory bird conservation challenges is the lack of education to society so
many outstanding misperception as hunting even suspect migratory birds
considered to carry bird flu virus. And another challenge is the lack of
continuous data because the number of birds that migrate to Indonesia very much
but not in balance experts and observers. For that community involvement in
maintaining sustainability of the birds very important citizens were invited to
actively contribute to science, with its intellectual efforts as well as the
surrounding environment with the resources he had.
In the dictionary
"dictionary of birds" mentioned that migration is the movement of a
bird population that occurs at a specific time every year from the place of
multiplying to find then the climate in place during biaknya is not possible.
At the new place of the birds will be multiplying and multiplying new if it
returns to its origin. As the country which became the main path and ultimate
purpose of various types of bird migration, Indonesia would certainly have an
important role in preserving the migrant birds.
