Lordy! I was quite prepared to leave it be initially, but now I feel obliged to respond. For those lucky enough not to have read it before, here's the alternative explanation for "ley lines".
They don't exist.
That's it, basically. Actually what was traditionally understood by the term "ley lines" was thoroughly debunked years ago, so they often now appear to be called "energy lines", but the same applies. Some beekeepers claim they must exist because they can be found by dowsing, but under reliable test conditions there's no credible evidence that dowsing works either, and plenty that it doesn't. As I've said before, James Randi offered up to $1million for anyone who could demonstrate any form of "paranormal" ability under test conditions. Dowsing was one of the most (if not the most) commonly claimed abilities as far as I recall, and no-one ever succeeded in showing it worked. Here's an example that was televised:
(I've skipped the early part that isn't about dowsing.) There are quite a few others.
What there is lots of evidence for is how people either as individuals or groups can trick themselves into believing something that isn't true and how the "dowsing response" may come about.
There may be all sorts of reasons why swarms of bees turn up in a given hive and not others, some of which we think we understand and others we probably have no knowledge of. That they repeatedly show a preference for the same location should hardly be a surprise given that one swarm will presumably have very similar preferences to another.
Now, shall we move on whilst I take a break to get my chakras realigned?
James