Migration comes from the Latin word, migrates that means “to change”. The word has a special meaning when it comes to birds and animals. The migration is the movement of bird from one region to another one. It happens on the regular basis on a particular time period, mainly during the season. When it comes to birds, the migration occurs twice in a year.
Bird Migration is the regular seasonal movement. Many species of bird migrate that carries high costs in predation and mortality. Now, question rose, how many bird species migrate? Data says that more than 4,000 species of bird regular migrants. It is about 40% of the total population of the whole world. They migrate during spring and again in the rainy session.
Types of migrating birds
Many research and study have done to know that reason for bird migration and it is found that there are the different reason of movement depending on the area and species. However, not all birds migrate.
Permanent Residents-: These birds do not go anywhere and live in the same area all year round. Pigeons, crows, blackbirds stay put all year round in the same place.
Winter Residents-: Winter residents are those birds who are not able to tolerate the current weather of the place where they are living. So, they fly south for the winter.
Summer Resident -: Summer residents migratory birds move north in the spring, nest during the summer and also return south in the fall.
It is tough to name all bird species that migrate. However, there is a short list of migrating birds
Hummingbirds are the small migrating bird with an average weight of 1/8 an ounce. The birds can travel as fast as 30 mph when migrating.
Songbirds travel at an altitude as high as 500-2,000 feet. It is said that these birds fly at higher elevations to conserve energy with less flapping of the wings and more gliding. You cannot see these birds travelling.
Neotropic migrates from Neotropic areas in Central America and South America. Northern Oriole, the Baltimore Oriole, the Rose-Breasted Grosbeak are some of the known Neotropic birds.
Arctic tern holds the long-distance migration n record bird. It travels between Antarctic and Arctic breeding grounds year.
Falco Eleonorae breeds on Mediterranean islands. The bird has very late breeding. The breeding season is coordinated with the autumn passage of southbound passerine migrants, which it feeds to its kids.
Migration in birds is not limited to birds that can fly. Almost all species of penguin migrate by swimming covering over 1,000 kg.
It is an incredible fact, but true that Dusky grouse migrate by walking.
These are some famous bird species that migrate. Apart from the above list there are many more birds that migrate from one place to another place for multiple reasons.
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