IELTS SUMMARY 2 BIRDS MIGRATION
Many kinds of animal travel each year from cold to warmer place to breed and survive, and probably bird migration are the most interesting from other animals. The most common of bird migration is travelling to higher latitudes during the warm season and returning to lower latitudes for nesting and feed the young. During migration birds fly for a limit period, probably about six to eight hours and take a distance about several hundred miles. However, some birds undertake much longer flights when their routes include large amount of water. For example, some bird regularly crossing the Gulf of Mexico and flight continuously up to 1000 miles.
How bird ability to navigate through very long distance has fascinating observer for century. Researchers found that migratory bird have some ability to navigate through extraterrestrial object like stars and sun or geographic features like mountain or sea coast.
Many kinds of animal travel each year from cold to warmer place to breed and survive, and probably bird migration are the most interesting from other animals. The most common of bird migration is travelling to higher latitudes during the warm season and returning to lower latitudes for nesting and feed the young. During migration birds fly for a limit period, probably about six to eight hours and take a distance about several hundred miles. However, some birds undertake much longer flights when their routes include large amount of water. For example, some bird regularly crossing the Gulf of Mexico and flight continuously up to 1000 miles.
How bird ability to navigate through very long distance has fascinating observer for century. Researchers found that migratory bird have some ability to navigate through extraterrestrial object like stars and sun or geographic features like mountain or sea coast.