One (of many) of my weak areas of knowledge, is my tree identification.
I found these great videos from Patrick Whitefield on the subject matter.
I've put the four videos together as a play list for easy reference for everyone. You can jump from video to video using the arrows at the top of the video player. I hope you find them useful, I know I did.
http://www.youtube.com/watch?v=FycMU...LrZKbuPV9onXHB