kyanocitta's Identifications

@kyanocitta got better photos - https://www.inaturalist.org/observations/217742612

Dark storm-petrel joined the FTSPs as I was leaving. Dark overall, dark-rumped storm-petrel. Relatively short wing length and flight style ruled out Leach's and Black Storm-Petrels.

https://ebird.org/checklist/S176635388

Link to Woolly Milkweed that was hosting several species of beetles: https://www.inaturalist.org/observations/217420119

Cobalt Milkweed Beetle (Chrysochus cobaltinus) is a shiny, blue-green flying insect in the Leaf Beetles (Chrysomelidae) family.

BugGuide: https://bugguide.net/index.php?q=search&keys=Chrysochus+cobaltinus

Cucujiform Beetles (Infraorder Cucujiformia). Cucujiformia is an infraorder of polyphagan beetles that represent most plant-eating beetles. https://www.inaturalist.org/taxa/372852-Cucujiformia

Taxonomic chart of Cucujiform Beetles. The infraorder contains seven superfamilies:

Chrysomeloidea (~7 families including longhorn beetles and LEAF BEETLES)
Cleroidea (checkered beetles, bark-gnawing beetles and soft-winged flower beetles)
Coccinelloidea (15 families, includes Lady Beetles and fungus beetles)
Cucujoidea (~27 families)
Curculionoidea (~8 families primarily consisting of weevils and also including snout beetles and bark beetles)
Lymexyloidea (ship-timber beetles)
Tenebrionoidea (formerly "Heteromera") (30 families including blister beetles and ant-like beetles)

Field Guide to California Insects, by Kip Will, J. Gross, D. Rubinoff , J. Powell, 2nd ed., 2020

BugGuide: Arthropods: Photos of Insects, Spiders & Their Kin (US & Canada), clickable categories or use search bar (scientific name): https://bugguide.net/node/view/3/bgpage