By 2003, 25 such birds had been discovered.
After this, these birds began to be called Pfeilstorch.
Pfeil: arrow
Storch: stork
How humans learned about the existence of migratory birds
By 2003, 25 such birds had been discovered.
After this, these birds began to be called Pfeilstorch.
Pfeil: arrow
Storch: stork