California Sister Adelpha californica Nymphalidae Brushfoots Flies March to November Host Plant Oak Nectar Plant California buckeye Michael Marchiano Underwing Daniel Fitzgerald

Wildflower Mount Diablo Chaparral Currant Scientific Name: Ribes malvaceum var. malvaceum Family: Grossulariaceae (Gooseberry Family) Blooms: Jan - Mar Color: Red-Pink Shrub Native, endemic to California Jump to Blooming Now Blue / Purple Red / Pink White Yellow / Orange Invasive Plants Kevin Hintsa

All Year Acorn Woodpecker Melanerpes formicivorus American Crow Corvus brachyrhynchos American Kestrel Falco sparverius American Robin Turdus migratorius Anna's Hummingbird Calypte anna Band-tailed Pigeon Patagioenas fasciata Barn Owl Tyto alba Bell's Sparrow Artemisiospiza belli Bewick's Wren Thryomanes bewickii Black Phoebe Sayornis nigricans Brewer's Blackbird Euphagus cyanocephalus Brown Creeper Certhia americana Brown-headed Cowbird Molothrus ater Burrowing Owl Athene cunicularia Bushtit Psaltriparus minimus California Quail Callipepla californica California Scrub Jay Aphelocoma californica California Thrasher Toxostoma redivivum California Towhee Melozone crissalis Chestnut-backed Chickadee Poecile rufescens Common Raven Corvus corax Cooper's Hawk Accipiter copperii Dark-eyed Junco Junco hyemalis Downy Woodpecker Dryobates pubescens Eurasian Collared-Dove Streptopelia decaocto European Starling Sturnus vulgaris Golden Eagle Aquila chrysaetos Great Horned Owl Bubo virginianus Hairy Woodpecker Dryobates villosus Horned Lark Eremophila alpestris House Finch Haemorhous mexicanus House Sparrow Passer domesticus House Wren Troglodytes aedon Hutton's Vireo Vireo huttoni Killdeer Charadrius vociferus Lark Sparrow Chondestes grammacus Lesser Goldfinch Spinus psaltria Loggerhead Shrike Lanius ludovicianus Mallard Anas platyrhynchos Mourning Dove Zenaida macroura Northern Flicker Colaptes auratus Northern Harrier Circus hudsonius Northern Mockingbird Mimus polyglottos Nuttall's Woodpecker Dryobates nuttallii Oak Titmouse Baeolophus inornatus Peregrine Falcon Falco peregrinus Phainopepla Phainopepla nitens Purple Finch Haemorhous purpureus Red-shouldered Hawk Buteo lineatus Red-tailed Hawk Buteo jamaicensis Red-winged Blackbird Agelaius phoeniceus Rock Pigeon Columba livia Rock Wren Salpinctes obsoletus Rufous-crowned Sparrow Aimophila ruficeps Song Sparrow Melospiza melodia Spotted Towhee Pipilo maculatus Steller's Jay Cyanocitta stelleri Turkey Vulture Carthartes aura Western Bluebird Sialia mexicana Western Meadowlark Sturnella neglecta

Dianthidium Dianthidium Megachilidae Dianthidium Describe your image Describe your image Describe your image Describe your image Describe your image Describe your image Description Dianthidium are yellow and black bees, and not hairy (except toward the back of the thorax). They have 2 submarginal cells, and have pronotal lobes on the thorax that are paper-thin (see black arrows above). Yellow on the face runs along the inside of the compound eyes. All Dianthidium in California belong to the subgenus Dianthidium. Anthidium, Anthidiellum and some Stelis bees can be similarly colored. Nectar/ Pollen Plants On Mount Diablo, Dianthidium are found on Great Valley Gumweed (Grindelia camporum ) and Heermann's Tarweed (Holocarpha heermanii ), as well as on other flowers Habits Dianthidium are called pebble bees because they construct nests from sand or pebbles (bound with mud or resin) and place them on twigs or on roots within animal burrows Season Late May - August

California Fairy Bee Perdita californica Andrenidae Perdita Describe your image Describe your image Describe your image Describe your image Describe your image Describe your image Description Genus Perdita is named for Shakespeare’s heroine, Perdita, in The Winter’s Tale, who loved wildflowers best of all. Perdita californica is a beautiful, colorful, small bee with a gold/red abdomen. There are 2 submarginal cells and a large stigma in the wing. The bee is about 6 mm in length. Shown with a truly tiny chalcidoid wasp, on Mariposa Lily. Nectar/ Pollen Plants Associated with Mariposa Lily (Calochortus venustus ) as pollen collector. May visit other flowers for nectar. Habits Ground nesters, but details are not known. Season April - June, timed to blooming of Mariposa Lily

Nashville Warbler Warblers Nashville Warbler Oreothlypis ruficapilla Migrating Warblers Daniel Fitzgerald This warbler passes through during migration and is distinctive with its gray head, white eye-ring and yellow throat contrasting with its olive green back.

Wildflower Mount Diablo California Chickory Scientific Name: Rafinesquia californica Family: Asteraceae (Sunflower Family) Blooms: April - May Color: White Annual herb Native Jump to Blooming Now Blue / Purple Red / Pink White Yellow / Orange Invasive Plants Steven Beatty Steven Beatty Leaf detail

Wildflower Mount Diablo Horseweed Scientific Name: Erigeron canadensis Family: Asteraceae (Sunflower Family) Blooms: Mar - Nov Color: White Annual herb Native Jump to Blooming Now Blue / Purple Red / Pink White Yellow / Orange Invasive Plants Steven Beatty

Chestnut-backed Chickadee Chickadees, Titmice and Nuthatches Chestnut-backed Chickadee Poecile rufescens All Year Chickadees, Titmice and Nuthatches Daniel Fitzgerald Chickadees and Titmice are smaller small-billed acrobatic birds often found in mixed species flocks while feeding. This species has the chickadee characteristic cap, black bib and white cheeks and the its cap is black. Its back and rump are chestnut colored.

Wildflower Mount Diablo Hairypink Invasive Scientific Name: Petrorhagia dubia Family: Caryophyllaceae (Pink Family) Blooms: Mar - May Color: Red-Pink Annual herb Introduced Jump to Blooming Now Blue / Purple Red / Pink White Yellow / Orange Invasive Plants Kevin Hintsa

Wildflower Mount Diablo Wirestem, Rigiopappus, Wire weed, Wireweed Scientific Name: Rigiopappus leptocladus Family: Asteraceae (Sunflower Family) Blooms: April Color: Yellow-Orange Annual herb Native Jump to Blooming Now Blue / Purple Red / Pink White Yellow / Orange Invasive Plants Steve Beatty

Wildflower Mount Diablo Bittercress Scientific Name: Cardamine oligosperma Family: Brassicaceae (Mustard Family) Blooms: Feb - Apr Color: White Annual or perennial herb Native Jump to Blooming Now Blue / Purple Red / Pink White Yellow / Orange Invasive Plants Mike Woodring