J. Davidson wrote:
all over the front yard. The leaves are yellow. I can't remember if it did
this last year, but now seems especially early to be shedding leaves,
doesn't it?
Jackie
zone 7




Zone 7 seems kinda warm for a birch tree (they are northern temperate /
sub-arctic trees.) So maybe that's the problem.

Have you seriously disturbed the soil near the tree (eg, rebuilt a
driveway or walkway)? Birch trees do not like have their toes stepped on.