Sunday, March 29, 2026

Pipevine Swallowtails

 

Pipevine Swallowtail, SF Botanical Garden

Numerous pipevine swallowtails were going nuts laying eggs last week when my wife and I walked past the above patch of sparsely growing pipevine plants in the botanical garden. Naturally, I did not have a camera with me. I went back this morning to try to catch them in action again, but it wasn't happening. In fact, I even saw two small swallowtail caterpillars already munching on pipevine leaves, evidence that some of the eggs have already hatched (incubation takes 4-10 days).

Next I checked up on the great blue heron nests at Blue Heron Lake and was surprised to find one with two young chicks in it. I might not have spotted the tiny critters at all if not for an observant woman with binoculars who pointed them out.


I arrived at the Botanical Garden so early that dew was still on the flowers and the butterflies were still layed up somewhere.


As I walked around the garden I eventually began to see some of the pipevine swallowtails fluttering around.


I also noticed that some naughty creature had been munching on nopalitos in the Succulent Garden.


Umber Skipper Sunning on Wild Rose


Pipevine Fruit


This guy just clung to the tree with its wings folded up, making it very nicely camouflaged.


Every now and then the red admiral would reveal itself by opening its wings to catch a little sunshine.


Monarch With Tattered Wings


Variable Checkerspot


Variable Checkerspot on Rose


Variable Checkerspot on Pipevine


Litte Pipevine Swallowtail Caterpillars


Going Up!


Double-crested Cormorant Airing Its Wings at Blue Heron Lake


If you look closely you can see one of the two youngsters beneath the adult on the right.


The adult on the left soon absconded, maybe to find lunch for the chicks.


Two chicks look around on a hot day, reportedly 76 degrees, with little opportunity for shade. As I was leaving, the adult held its wings out somewhat to cool itself (as in this picture from 3/18) and provide a little respite for the chicks.


Black-crowned Night Heron


I noticed the Casting Pools being drained and scrubbed clean last week, and yesterday the pool area was being used to shoot a skateboarding video.

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