[PAR] [TLE] South American Bird Fair [SEP] The South American Birdwatching Fair is an annual event for birdwatchers, held every year in a different country of the continent.  It is described as the birder's principal meeting in South America, with people from all the world. [PAR] [TLE] Year [SEP] A year is the orbital period of the Earth moving in its orbit around the Sun.  Due to the Earth's axial tilt, the course of a year sees the passing of the seasons, marked by changes in weather, the hours of daylight, and, consequently, vegetation and soil fertility.  In temperate and subpolar regions around the globe, four seasons are generally recognized: "spring", "summer", "autumn" and "winter".  In tropical and subtropical regions several geographical sectors do not present defined seasons; but in the seasonal tropics, the annual "wet" and "dry" seasons are recognized and tracked.
[PAR] [TLE] South American Bird Fair [ SEP ] The South American Birdwatching Fair is an annual event for birdwatchers , held every year in a different country of the continent . It is described as the birder 's principal meeting in South America , with people from all the world . [PAR] [TLE] Year [ SEP ] A year is the orbital period of the Earth moving in its orbit around the Sun . Due to the Earth 's axial tilt , the course of a year sees the passing of the seasons , marked by changes in weather , the hours of daylight , and , consequently , vegetation and soil fertility . In temperate and subpolar regions around the globe , four seasons are generally recognized : " spring " , " summer " , " autumn " and " winter " . In tropical and subtropical regions several geographical sectors do not present defined seasons ; but in the seasonal tropics , the annual " wet " and " dry " seasons are recognized and tracked .
What event, considered to be a birders principal meeting in South America, is held every orbital period of the Earth moving in its orbit around the sun?
What event , considered to be a birders principal meeting in South America , is held every orbital period of the Earth moving in its orbit around the sun ?
South American Birdwatching Fair
South American Birdwatching Fair