Why Do Birds Fly South For The Winter
Olivia Luz
Many birds that eat nectar or insects will not be able to find food in areas that have.
The reason why birds fly south for the winter is simply because of the temperature and the food sources availible in relation to this temperature. Food habitat and weather conditions are the reasons why birds fly south during the winter. So lots of birds go back and forth every season. Generally speaking in the winter there s more food for them further south.
When they feel the change in the weather conditions then their migration starts. Migration carries high costs in predation and mortality including from hunting by humans and is driven primarily by availability of food. Birds fly south in the winter in search of alternate food sources and even though their summer home might be nicer they return home in the spring when their usual food stocks are replenished. Birds use flight to their advantage in all sorts of ways like flying away from animals that want to eat them or to look for food.
Birds in the southern hemisphere will do the opposite and fly north in the winter to reach the warmer locations. Of course they have prepared themselves for this long journey by storing more fat in their bodies that become their energy sources when flying. Several tracking studies have revealed that birds take hefty diversions to find. Why do birds fly south.
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So when the days grow shorter. Bird migration is the regular seasonal movement often north and south along a flyway between breeding and wintering grounds. The majority of the 650 species of birds found in north america are migratory. This isn t exactly the case.
Birds can and do survive extremely harsh winters. Many species of bird migrate.
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