There were about half a dozen small trees that were damaged last December in an ice storm that I cut and I thought they were young black birch trees. The reason I'm wondering if they are black locust is because I noticed a wierd smell one time when I was outside that seemed to be coming from my chimney, almost smelled like trash burning and a member here said it might have been black locust burning that I smelled. Can anyone tell by the pictures below if this is black birch or black locust or maybe both? Thanks!