It was late fall, but still felt like summer when I visited Stebbins in September. Each season has its highlights, and I went to the canyon looking forward to flying insects, active birds, and the early hints of fall colors. I wasn’t disappointed! The Anna’s hummingbirds (Calypte anna) and the grasshoppers were quite lively, and it sometimes took me a minute to register which of the two large flyers had just whizzed past my head.
Poison oak (Toxicodendron diversilobum) is always showy this time of year. I love to see it looking healthy and abundant: it is an important food source for birds, herps, insects and some mammals.
I spent a long time watching a gray hairstreak (Strymon melinus) on slender clover (Trifolium gracilentum). I hadn’t seen one in Stebbins yet – it is a pretty little butterfly!
Enjoying the wildflowers on a beautiful February day, I also noticed a different form of California buckeye (Aesculus californica) regrowth than I had seen last year. Along the creek trail, some buckeyes that had not regrown in their crowns last year were sending up basal shoots. I love the way the leaf buds look.
I was excited to see a checker-lily (Fritillaria affinis), something I did not catch last year. Greater bee-flies (Bombylius major) were everywhere, enjoying the sun and the flowers.
A yellowjacket (Vespula sp.) resting on purple nightshade (Solanum xanti), a western fence lizard (Sceloporus occidentalis) paused on a rock in the sun, and the first blooms on fleshy lupine (Lupinus succulentus):
A few more blooms (canyon delphinium, blue dicks, and miner’s lettuce):
I’m still working on capturing the grey expanses of dead tree and shrub branches against the hillsides.
Cold creek is beautiful and clear.
The wet winter has led to movement on the hillsides, although maybe not as much as there might have been, given how recent the fire was. This was a slump right along the creek trail.
In November, on a cool but not cold day, I hiked to the top of Blue Ridge. Looking out at Lake Berryessa, it was easy to see part of the area burned by the Cold Fire last summer.
On the way up the trail, I looked for mushrooms enjoying the damp left by rains earlier in the month, and observed regrowth of mountain mahogany (Cercocarpus betuloides), blue oaks (Quercus douglasii), and chamise (Adenostoma fasciculatum). The leaves of yerba santa (Eriodictyon californicum) along the trail were losing their waxy coating. The waxy coating, presumably beneficial in retaining water during dry months, is resinous and highly flammable. Yerba santa seeds may require fire to germinate and can also resprout from rhizomes following fire.
Hillsides stripped of their erosion-controlling vegetation by the fire have been shored up with erosion matting installed by Tuleyome and Friends of Stebbins Cold Canyon Reserve.
Looking across Cold Canyon I was struck by the “rivers” of dead tree branches running down the canyons of Pleasants Ridge. They made a ghostly grey against the greens of new growth and the hills still mostly yellow from the summer.
A few mid-action photos:
By June, Cold Creek was dry, at least in the lower part. It is possible that water remained in pools higher up in the canyon.
There were still a few wildflowers to find, and some Valley elderberry longhorn beetles (Desmocerus californicus dimorphus) on their favorite plant:
The leaves of yerba santa (Eriodictyon californicum) growing alongside the trail were strikingly shiny. The yerba santa often seemed to be growing in patches of weedy thistles (star thistle, milk thistle) and dandelions, which are much more abundant post-fire with much of the shade gone.
Brown summer hills and a vibrant cloud-free sky: