In honor of the first day of spring (March 20, 2018, in the Northern hemisphere!), check out this bird migration dataset. Each dot represents a different bird species. NOAA
In honor of the first day of spring (March 20, 2018, in the Northern hemisphere!), check out this bird migration dataset. Each dot represents a different bird species. NOAA

NOAA tracks bird migration in this video posted in honor of first day of spring

March 20, 2018 02:01 PM