World Migratory Bird Day will take place on May 8th, 2021 to dedicate itself to the beauty and protection of migratory birds. The day of action was introduced in 2006 through the United Nations Environment Program. A bird species is called a migratory bird when it spends different seasons in different places.
It is estimated that there are 50 billion migratory birds around the world every year, around five billion of them between Europe and Africa. The counterpart is the standing bird, in between there are mixed forms such as the line bird or partial puller. Obligatory migratory birds are those that leave the breeding areas in approximately the same time windows and regardless of the respective climatic conditions on approximately the same routes and return to them in the following spring after staying in their winter quarters.
Orientation takes place in Zugvöheln mainly through a magnetic sense, which is based on the earth’s magnetic field. It is not clear whether migratory birds also orientate themselves on the star constellation, since they also fly within clouds without eye contact to the sky or to the surface of the earth. One reason to move north in summer is the long days, which lengthen the time for foraging and thus facilitate the rearing of the young. (With material from: Wikipedia)
Where is the World Migratory Bird Day?
When is the World Migratory Bird Day?
Saturday, May 8, 2021 to Sunday, May 9, 2021