August
4th. I took a slight short detour from my usual route to look at an unusual
mushroom by the trail. After satisfying my curiosity, I walk a little further
along the trail to meet the main trail I wanted.
I
was surprised to see the trail cordoned off with caution tape. I’d never seen a
trail blocked in this area before. In fact, I’d never seen a trail in this park
every blocked from travel. I had to walk over and find out what was going on.
And
here it was. ‘KEEP OUT – ACTIVE HORNET’S NEST’
That
explained something else. I parked at the lot uphill from this section of
trail. While I was gathering my gear, a couple of Southern Yellowjackets (Vespula squamosa) flew in through the open
door of the car. They seemed more active than I’m used to seeing. I just stood
back and they flew off within a few minutes.
Postscript.
The trail was still blocked on August 11th and I encountered a
couple more yellow jackets in the car. Guess the trail will be closed now until winter at the earliest. The major nest building will occur this month, and will
reach its maximum size in October to December. Hopefully this will be an annual
nest and the trail will be opened again in winter or spring.
Reference: