Wow! Now that's an interesting story! Thanks for sharing. I must admit,
I have never heard of anything like that. I have tons, maybe literally
tons, of wisteria that runs the length of the back porch overhang and fence
line behind that in between which is my exclusive 'hummingbird garden'.
Just keeping the wisteria maintained is a busy albeit 'zen' like activity and
I always seem to tweaking it to keep it just right.

And there are always lots and lots of hummingbirds (12-16, Anna's &
Rufuous) all day long, from the first bird of the day at morning's first light to
the very end when daylight has mostly faded. It's just about a full time
job just keeping the 8, sometimes 9 feeders filled, 3 of which are in or
around the wisteria. Yet, I have never observed an incident which you
describe, or anything close as I never thought a cluster of wisteria blossoms
might bring peril, thus your observation surely must be very unusual if not
outright accidental, but very interesting none the less and worth watching out
for more closely.

Most of my wisteria in the blooming phase is long gone. I was away for a
couple months (April-May) during this year's peak bloom, but on return,
with what was left, it looked like the cool wet Spring kept the bloom clusters
soaked each and every day such that when it was time for them to start
falling off, they just faded and clumped up on the stem which required some
manual cleanup. The leaves have been slow this Spring to fully come out.
There's plenty of green leaves as always, but there are many more still
slowly, ever so slowly, emerging to reach their full potential. As for the
hummingbirds, they are just as happy, active, and crazed as always. It's
pretty amazing when they are 'swarming' as they were late yesterday afternoon
and just sitting out there on the patio and them often buzzing right around
my head, sometimes hovering only inches away curiously checking out every
inch of my head which can be sustained for a minute up to three, gets me
wondering just what exactly they are doing or maybe thinking. When everything
becomes quiet and/or routine, I can always count on the hummingbirds to
keep me fascinated and entertained every single day of the year, no matter how
hot or wet or cold and snowy.

Richard Rowlett
Bellevue (Eastgate), WA