variety: rarities, competition, stress in birds, etc.

Here's some variety for you:

This week's notice of rare species here and there shows up on the ABA Blog here - and then there's a post about a new book on competition, at the Round Robin (Cornell's) blog, here.

Here's some fascinating information about birds' responses to stress.

If you've never looked at it, go to the website for the Center for Biological Diversity, to see what they're up to.