Thursday, July 23, 2026

Grandview Parkers

 

Dune Tansy Buttons
(Tanacetum bipinnatum)

I took a walk over to Grandview Park yesterday afternoon while the sun was out and brought my compact camera along despite having little expectation of actually using it. 

The nearly constant fog out here on the Westside makes sunshine a novelty, and from my high perch at the park I was struck by the sunlight's beautification of the city below. Closer to hand, though, I also noticed a fair amount of insect activity on some of the plants. Both were surprises that made me glad I'd brought a camera along.

Even though I've been stepping away from the compact camera lately, I can't deny how handy it is to be able to have such a wide zoom range in such a lightweight package. After photographing the insects (and a bird) on the plants, I wanted to bring my full-frame camera to bear on the plants themselves.


There were several American lady butterflies tumbling around in the wind, and even though they occasionally landed on the dune tansy, it seemed like it was more of a temporary perch for them than an actual nectar-stop.


While the larger butterflies cavorted above in the strong winds, a tiny gray hairstreak calmly gathered sweet nectar from the golden flowers.


Dune Tansy


I'd never seen this plant bug before. It's apparently a relative of a more common larger plant bug in the Largus genus.


The larger Largus being this orange-bordered bug. Look at that pointy proboscis being stuck into the buckwheat flowers.


Bumblebees were working on the dune tansy, but I only noticed honeybees on the buckwheat. The buckwheat was planted to draw in a rare native butterfly, the green hairstreak, but I have yet to see one around here.


Coast Buckwheat
(Eriogonum latifolium)


A white-crowned sparrow popped up and looked around from its perch on swaying stalks of coastal sagewort.


Coastal Sagewort


Artemisia pycnocephala


Afternoon Clarity

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Thursday, July 16, 2026

Duxbury Reef

 

Tiny Shag Rug Nudibranch at Duxbury Reef

When you see pictures of sea slugs like the one above, you can be forgiven for thinking they are fairly large animals. This one was probably no more than five-eighths of an inch long (~15mm). They do get bigger, but it seemed like the junior models were the main ones I saw in this and a couple other species.

The -1.7' low tide on Wednesday landed just a few minutes after sunrise. It's been a while since I've been to Duxbury Reef, so I put it in Google Maps, thinking I might need help finding it if it was still dark when I got there. Unfortunately, the directions took me to a useless overlook on a dirt road. I'd forgotten that the destination to the parking area needs to be entered as Agate Beach in Bolinas.

Tidepooling conditions were very good, with no fog and minimal wind. I was cold the entire time, though. I'd left my jacket in the car, thinking the sun would come up and the jacket would just be in the way. I was on the reef at sunrise, which was 6 a.m., but the sun didn't rise high enough over the mesa to warm the reef until two hours later.

On the way home I stopped for a while to watch the bird life at Bolinas Lagoon, then made a quick stop at Rock Spring on Mt. Tam to hike out to the trail cams. One of them is still not working, even though it does power up. Might need to buy replacements, and I'll probably go with an older name brand. The newcomers I've been using have been a disappointment.


Mossy Chiton (Mopalia muscosa) & Limpet


Wentletrap Sea Snail (Epitonium sp.)


Sunburst Anemone (Anthopleura sola)


Possibly a Shag Rug Nudibranch (Aeolidia loui)


Rising Shaggy


Northern Kelp Crab (Pugettia producta)


San Diego Dorid (Diaulula sandiegensis)


Showing off its gill bouquet.


Can't resist a clean sunburst anemone (especially since I didn't see a single sea star of any kind out there).


Striped Shore Crab & Friends


Opalescent Nudibranch (Hermissenda opalescens)


Opalescent on the Move


Striped Shore Crab (Pachygrapsus crassipes)


Olive's Aeolid (Anteaeolidiella oliviae)


Lined Chiton (Tonicella sp.)


Hilton's Aeolid (Phidiana hiltoni)


Hilton on the Move


Baby Opalescent Nudibranch


Baby Hilton's Nudibranch


Mossy Chiton


Plainfin Midshipman (Porichthys notatus)


A large flock of (elegant?) terns was gathered on the mudflats of Bolinas Lagoon during low tide. Something spooked them into the air a couple of times.


Most of the shorebirds were too far out to photograph, but this long-billed curlew was just close enough to observe for a while.


After preening and stretching, it eventually began to hunt. Here the curlew is trying to extricate a crab from the algae it's clinging to.


Success for the curlew; not so much for the crab.


A snowy egret winged past but landed kind of far away.


Wingbeats


I pulled over to check out a couple groups of napping harbor seals when this great egret waded into view and quickly made a stab.


Success


Harbor Seals on a Lazy Morning


Cormorants and gulls were hanging out near a second group of harbor seals that was farther from shore.


My trail cams on Mt. Tam recently caught a raccoon eating honeycomb, which I believe came from this wasp nest on a nearby log. It appears the wasps are rebuilding. The nearby pool of water where my cams are is no longer flowing at all. Not sure how long the pool will last.


Cool Clouds Over Mt. Shasta

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Monday, July 13, 2026

Monsoon Season


Sunset with Monsoon Clouds

San Francisco was right along the edge of a monsoon cloud-train yesterday. The train blew out the fog and put on an awe-inspiring show. My wife and I were in the middle of watching an excellent documentary, Georgia O'Keeffe: The Brightness of Light, as the time for sunset approached. We put the show on hold as I biked over to Grandview Park with my camera, feeling inspired by O'Keeffe's spirit of relating to light and landscape. 

[UPDATE: More from the next day's sunset at the bottom.]


















We got home from dinner at Wildseed just in time to head over to Grandview Park for another gorgeous Monday sunset.








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