Attempted IDs
It is estimated there are between 10 billion, and as many as 20 billion birds, in North America at any point in time.
Some day I'd like to sort these into Sibley categories. Not the 20 billion, just the ones below.
Description:
Attempted IDs
It is estimated there are between 10 billion, and as many as 20 billion birds, in North America at any point in time.
Some day I'd like to sort these into Sibley categories. Not the 20 billion, just the ones below.