I wrote this a couple of weeks ago:
I am worried about our Silver Birch tree which is on the right of the garden fairly close to the house, very pretty from the conservatory. Well it was pretty. We had it tree surgeoned in early winter, just raising the canopy and a good tidy up. The problem is that it has been topped in the past, and apparently it is unwise to chop the top off a silver birch, because they do tend to rot and dont' take to this sort of treatment. So our tree surgeons didn't do any of that.
However its branches are looking really black at the moment, it is carrying sooty-looking black catkins, and lots of twigs seem to drop off it on windy days like today, then it bleeds where they fell off. Part of me hopes it is OK (think of the cost of having it all taken out, and what do you do with the stump?) but part of me would like to have more scope in that area, perhaps for a pond, or for another tree like an Amelanchier which I have always wanted but never had room for. Yes, I know they are suitable in a small garden, and our garden is not exactly small, but it already has so many trees!
Mind you, I have been keeping my eyes peeled as we have been out and about, and I have seen a number of Silver Birches which look just as manky as ours, so that is I suppose encouraging. Either there is a mass die-off of Silver Birches this spring, or they always look black and horrible like something out of a horror film, just before they break dormancy? Seems a rum do to me, a tree looking so blackened and forbidding in Spring, I would have thought it would look hopeful and covered in little green shoots and catkins, but perhaps that shows what I know (or don't know) about trees.
Anyway the upshot of all that is that at last, seemingly all at once, my silver birch's catkins have turned green and at last today 27 April, it looks like spring has arrived for the silver birch. Hopefully it will get leaves next. And indeed, most of the silver birches I have seen around have been looking almost as bad as ours for the last few weeks.