Interestingly, birds remain woefully understudied when it comes to the optical extras. Until now, no one had looked for the ...

Did you know that some animals hire nannies? No, they don't pay other animals to raise their kids, but some animals--like an ...

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 ...