This is really cool! So, whenever we do a bird walk or one of our big counts, like the Christmas Bird Count(which is Dec 29), our data is entered into the online database known as eBird.
Millions of others across the country are entering their data too and what results is a great story of migration!
Now, eBird has released the first 15 new dynamic maps capturing the awe-inspiring ebb and flow of bird migration. See maps in action at eBird