Greetings,

Newest to our Feature Articles page is The Trillogy: Separating Eastern North America’s Trillers. It falls under our ID Challenges page, and in particular our Auditory Challenges. This newly created page was first inspired by the post that Ryan put up on May 13, 2006 about the difficulties in learning the difference in trill between Chipping Sparrow, Pine Warbler, and Dark-eyed Junco. We hope that this page is of some help, especially with spring migration just a few short months away. You can find the link to the article here. Enjoy!