Now that I have mastered the skill of getting punk wood To take a spark with flint and steel, I am now tasked with finding good natural birds nests. I failed several times today in an attempt to do so. I was able to find some dry inner bark, But not enough for a Birdsnest. I looked in places where the sunlight was prevalent and used dry leaves and Pineneedles. What types of trees and plants should I be looking for? Poplar?