Migration is the seasonal movement of bird’s population from one place to another. Birds are able to detect early signs of climatic change. Human can learn from the migration of birds for better environmental planning by just observing unique species. Migration period offers the best opportunity to undertake a bird ringing exercise; you might be surprised to get a ringed bird from another continent or a country. There are regions in the world such as Arctic that support numerous birds in summer, and during this the time birds experience high productivity but in winter condition are unfavorable for birds forcing them to move to other places, or become dormant and sometimes leads to death. Below are some of the reasons why it’s important for birds to migrate annually either short or long distance migration. Birds are bio indicators and know when to migrate to south or north. The period of migration of birds depend on the type of migration, a short distances may take a few hours or days to reach their new habitat while Intra-Africa may take days or weeks while Malagasy and Palaearctic takes weeks or months to reach their destinations.
Bird migrates due to
1. Change in climate;
When weather changes that doesn’t suit a particular bird species, they’ll move to a suitable location, change of weather either result into destruction of habitat in one area and improvement of habitats in some areas. Unsuitable conditions includes but not limited to burning of vegetation, cutting down trees, draining available little water etc. in Kenya Lake Nakuru was a darling for the Flamingoes birds but as the water quality became unfavorable for the birds they moved on to favorable waters
2. Search for food
Birds migrate to areas with plenty of food such as insect, worms, and grains to raise their young ones. Without food many birds aren’t able to survive. Food availability changes with the weather of a particular environment and birds are able to detect the food situation in advance and move to other places to feed.
3. Search for water
Migration of birds happens due to scarcity of water, this happens mostly to water birds because it’s the only place called home to them. When fresh water Lakes changes to alkaline expect a number of fresh water birds to migrate to other lakes
4. Birds migrate to breed
During breeding season birds search for areas where young one can be raised, selecting environment with plenty of food, water and nesting habitats
5. Search for protective cover
When we have bird’s predators, the small birds being predated on will move to safe areas with adequate cover
6. Search for nesting site
Movement of birds can be observed when birds are about to construct their nests. They will consider areas with adequate food, water and protective cover
7. To raise young ones
When looking for safe places to raise their young ones, such places are free from predators, availability of food among other necessities required by the birds.
8. Human activities
Certain human activities such as wetland farming may drive for migration of birds to other friendly wetlands. Recently a section Yala Swamp was being burnt everywhere making it inhabitable for a few months for endemic species such as Papyrus Gonolek, Papyrus yellow warbler among others
Bird watching during migration period offers birders opportunity to watch as many bird species as possible within a short time. You can also check our detail guide on how to conduct a successful World Birds Migratory Day. For effective birding have the necessary equipment for bird watching including but not limited to binoculars both for kids and adults, guide books, a note book, a pen, let your visitors be dressed appropriately and if birding with small children consider carrying kids binoculars to assist them during excursion.