The first living creature to travel across the ocean by air , or to fly from the northern end of the planet to its southern most continent was not a man ! These spectacular feats of flying belong to birds ! Owing to their adventurous nature ,birds travelled to the planet’s coldest , hottest remotest , windest and driest regions long before these place were explored by humans !
Having perfected the art of flying extraordinary distances and navigating across the planet without a map or even a compass , birds are the most skilled navigators and aeronauts the world has ever seen ! Their mastery of flight and navigation is evident in the regular seasonal journeys most of them make in search of food and friendlier climates These journey are called as migrayions . Birds use several methods to find their way during their travels . Some such as snow geese , travel continuously , using both the stars and the sun for navigation. Some birds are also guided by Earth’s magnetic field .
One of the avian world’s most amazing migrations is undertaken by Arctic tern , a seebird that weighs about 100 grams ! Every year , this daring birsds flies nearly from pole to pole . – from the Arctic to the Antarctic and back again ! Over its 25 years lifetime the bird travels the same distance as a round trip voyage to the moon !
Anther tiny bird , the hummingbird is an an avian marvel ! This thumb-sizes bird, weighing just about 6 grams , holds several records ! It is the world’s smallest bird. It is the most accomplished hoverers of all the birds , and is the only bird that can fly backwards ! Found only in North America and south America , this acrobat of the air can perform spectacular gymnastic fears like flying upwards , downwards, sideways, hovering in mid-air and also flying upside down for short distances
Birds are natures grandest aviators . They have overcome the pull of gravity which keeps the other creatures tried to the ground . This explain why the sight of a flock of birds soaring across the sky is universal source of inspiration