Cape and Islands NPR13h
A rare visitor from Europe
I thought it might have been a female Ring-necked Duck, but a view through my spotting scope showed the characteristic ...
National Audubon Society17h
Where Have All The Birds Gone?
Q: The amount of effort that goes into a Christmas Bird Count varies quite a bit across years and count circles. How do you deal with this issue when you calculate abundance trends? How do you know ...