New Scientist on MSN9h
Quail-sized feathered dinosaur may be the earliest known bird
Archaeopteryx, long considered the earliest fossil bird, could be knocked off its perch by Baminornis zhenghensis, which ...
National Audubon Society12h
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 ...