Cooper's

Cooper's hawk (Accipiter cooperii)
Family: Accipitridae (hawks)
Hellyer Park
July 31, 2020
Canon 7Dmark2

American coot (Fulica americana)
Family: Rallidae
Hellyer Park
July 31, 2020
Canon 7Dmark2

Complaining adolescent

American coot (Fulica americana)
Family: Rallidae
Hellyer Park
July 31, 2020
Canon 7Dmark2

Made in America

American coot (Fulica americana)
Family: Rallidae
Hellyer Park
July 31, 2020
Canon 7Dmark2

()
Family:
Hellyer Park
July 31, 2020
Canon 7Dmark2

()
Family:
Hellyer Park
July 31, 2020
Canon 7Dmark2

Yellow Garden Spider (Argiope aurantia)
Family: Araneidae (orbweavers)
Hellyer Park
July 31, 2020
Canon 7Dmark2

()
Family:
Hellyer Park
July 31, 2020
Canon 7Dmark2

()
Family:
Hellyer Park
July 31, 2020
Canon 7Dmark2

Common buckeye (Junonia coenia)
Family: Nymphalidae (brush-footed butterflies)
Hellyer Park
July 31, 2020
Canon 7Dmark2

()
Family:
Hellyer Park
July 31, 2020
Canon 7Dmark2

Hoverfly hovering

Hoverfly ()
Family: Syrphidae (hoverflies)
Hellyer Park
July 31, 2020
Canon 7Dmark2

()
Family:
Hellyer Park
July 31, 2020
Canon 7Dmark2

Little lady

Twenty-spotted Lady Beetle (Psyllobora vigintimaculata)
Family: Coccinellidae (lady beetles)
Hellyer Park
July 31, 2020
Canon 7Dmark2

()
Family:
Hellyer Park
July 31, 2020
Canon 7Dmark2

()
Family:
Hellyer Park
July 31, 2020
Canon 7Dmark2

()
Family:
Hellyer Park
July 31, 2020
Canon 7Dmark2

()
Family:
Hellyer Park
July 31, 2020
Canon 7Dmark2

()
Family:
Hellyer Park
July 31, 2020
Canon 7Dmark2

()
Family:
Hellyer Park
July 31, 2020
Canon 7Dmark2

()
Family:
Hellyer Park
July 31, 2020
Canon 7Dmark2

Bull frog present tense

()
Family:
Hellyer Park
July 31, 2020
Canon 7Dmark2

Bull frog past tense

()
Family:
Hellyer Park
July 31, 2020
Canon 7Dmark2

()
Family:
Hellyer Park
July 31, 2020
Canon 7Dmark2

()
Family:
Hellyer Park
July 31, 2020
Canon 7Dmark2

()
Family:
Hellyer Park
July 31, 2020
Canon 7Dmark2

()
Family:
Hellyer Park
July 31, 2020
Canon 7Dmark2

()
Family:
Hellyer Park
July 31, 2020
Canon 7Dmark2

Persian Walnut (Juglans regia)
Family: Juglandaceae (walnut family)
Hellyer Park
July 31, 2020
Canon 7Dmark2

Persian Walnut (Juglans regia)
Family: Juglandaceae (walnut family)
Hellyer Park
July 31, 2020
Canon 7Dmark2

()
Family:
Hellyer Park
July 31, 2020
Canon 7Dmark2

When elders are blue

Blue Elder (Sambucus cerulea)
Family: Viburnaceae (elder family)
Hellyer Park
July 31, 2020
Canon 7Dmark2

()
Family:
Hellyer Park
July 31, 2020
Canon 7Dmark2

()
Family:
Hellyer Park
July 31, 2020
Canon 7Dmark2

()
Family:
Hellyer Park
July 31, 2020
Canon 7Dmark2

()
Family:
Hellyer Park
July 31, 2020
Canon 7Dmark2

()
Family:
Hellyer Park
July 31, 2020
Canon 7Dmark2

()
Family:
Hellyer Park
July 31, 2020
Canon 7Dmark2

()
Family:
Hellyer Park
July 31, 2020
Canon 7Dmark2

()
Family:
Hellyer Park
July 31, 2020
Canon 7Dmark2

()
Family:
Hellyer Park
July 31, 2020
Canon 7Dmark2

Undetected case

()
Family:
Hellyer Park
July 31, 2020
Canon 7Dmark2

Hellyer Park - scoping out walk
April 29, 2020

Bug eyes

()
Family:
Hellyer Park
April 29, 2020
Canon 7Dmark2

When bugs turn weevil

Rose weevil (Merhynchites)
Family: Attelabidae (leaf-rolling weevils)
Hellyer Park
April 29, 2020
Canon 7Dmark2

Stinky

Desert stink beetle (Eleodes acuticauda)
Family: Tenebrionidae (darkling beetles)
Hellyer Park
May 2, 2020
Canon 7Dmark2

Ladybug larva

()
Family:
Hellyer Park
April 29, 2020
Canon 7Dmark2

Covergent

Convergent lady beetle (Hippodamia convergens)
Family: Coccinellidae
Fennel (Foeniculum vulgare)
Family: Apiaceae (carrot family)
Hellyer Park
April 29, 2020
Canon 7Dmark2

()
Family:
Hellyer Park
April 29, 2020
Canon 7Dmark2

()
Family:
Hellyer Park
April 29, 2020
Canon 7Dmark2

Fly on dandelion

()
Family: Asteraceae (sunflowers, daisies, asters)

Hellyer Park
April 29, 2020
Canon 7Dmark2

Eggs on oak leaf

Squash Bug (Anasa tristis)
Family: Coreidae (leaf-footed bugs)
Hellyer Park
April 29, 2020
Canon 7Dmark2

Bug on rose

California Wild Rose (Rosa californica)
Family: Rosaceae (rose family)
Hellyer Park
April 29, 2020
Canon 7Dmark2

California Wild Rose (Rosa californica)
Family: Rosaceae (rose family)
Hellyer Park
April 29, 2020
Canon 7Dmark2

PO

Poison oak (Toxicodendron diversilobum)
Family: Anacardiaceae (cashew, sumac, poison oak family)
Hellyer Park
April 29, 2020
Canon 7Dmark2

Red pepper

Peruvian peppertree (Schinus molle)
Family: Anacardiaceae (cashew, sumac, poison oak family)
Hellyer Park
April 29, 2020
Canon 7Dmark2

Bedstraw balls

Catchweed bedstraw (Galium aparine)
Family: Rubiaceae (madder family)
Hellyer Park
April 29, 2020
Canon 7Dmark2

Cotton

Fremont cottonwood (Populus fremontii)
Family: Salicaceae (willow family), Populus genus includes cottonwoods, poplars, and aspen
Hellyer Park
April 29, 2020
Canon 7Dmark2

Fremont cottonwood (Populus fremontii)
Family: Salicaceae (willow family), Populus genus includes cottonwoods, poplars, and aspen
Hellyer Park
April 29, 2020
Canon 7Dmark2

Fallen leaf

Fremont cottonwood (Populus fremontii)
Family: Salicaceae (willow family), Populus genus includes cottonwoods, poplars, and aspen
Hellyer Park
April 29, 2020
Canon 7Dmark2

Pine

Canary Island pine (Pinus canariensis)
Family: Pinacea
Hellyer Park
May 2, 2020
Canon 7Dmark2

Pine

Canary Island pine (Pinus canariensis)
Family: Pinacea
Hellyer Park
May 2, 2020
Canon 7Dmark2

(Ailanthus)?
Family:
Hellyer Park
May 2, 2020
Canon 7Dmark2

California fan palm (Washingtonia filifera)
Family: Arecaceae
Hellyer Park
May 2, 2020
Canon 7Dmark2

Elderberry and palm

Canary Island palm ()
Family:
Blue elderberry (Sambucus cerulea)
Family: Viburnaceae (elder family)
Hellyer Park
April 29, 2020
Canon 7Dmark2

Blue elderberry (Sambucus cerulea)
Family: Viburnaceae (elder family)
Hellyer Park
April 29, 2020
Canon 7Dmark2

Locust tree (Robinia pseudoacacia x Robinia ambigua hybrid)
Family: Fabaceae (legumes, peas)
Hellyer Park
April 29, 2020
Canon 7Dmark2

Locust tree (Robinia pseudoacacia x Robinia ambigua hybrid)
Family: Fabaceae (legumes, peas)
Hellyer Park
April 29, 2020
Canon 7Dmark2

Shamel ash (Fraxinus uhdei)
Family: Oleaceae (olive family)
Hellyer Park
April 29, 2020
Canon 7Dmark2

Elm (Ulmas)
Family:
Hellyer Park
April 29, 2020
Canon 7Dmark2

Western sycamore (Platanus racemosa)
Family: Platanaceae (plane or sycamore family)
Hellyer Park
April 29, 2020
Canon 7Dmark2

Western sycamore (Platanus racemosa)
Family: Platanaceae (plane or sycamore family)
Hellyer Park
April 29, 2020
Canon 7Dmark2

California buckeye (Aesculus californica)
Family: Sapindaceae (soapberry family)
Hellyer Park
April 29, 2020
Canon 7Dmark2

Salsify (Tragopogon porrifolius)
Family: Asteraceae (sunflowers, daisies, asters)
Hellyer Park
April 29, 2020
Canon 7Dmark2

Milk thistle (Silybum marianum)
Family: Asteraceae (sunflowers, daisies, asters)
Hellyer Park
April 29, 2020
Canon 7Dmark2

Milk thistle (Silybum marianum)
Family: Asteraceae (sunflowers, daisies, asters)
Hellyer Park
April 29, 2020
Canon 7Dmark2

Milk thistle (Silybum marianum)
Family: Asteraceae (sunflowers, daisies, asters)
Hellyer Park
April 29, 2020
Canon 7Dmark2

Fennel (Foeniculum vulgare)
Family: Apiaceae (carrot family)
Hellyer Park
April 29, 2020
Canon 7Dmark2

Bull mallow (Malva nicaeensis)
Family: Malvaceae (mallow family)
Hellyer Park
April 29, 2020
Canon 7Dmark2

Wild mustard (Sinapis arvensis)
Family: Brassicaceae (mustard family)
Hellyer Park
April 29, 2020
Canon 7Dmark2

Bermuda Buttercup (Oxalis pes-caprae)
Family: Oxalidaceae (woodsorrel family)
Hellyer Park
April 29, 2020
Canon 7Dmark2

Scarlet Pimpernel (Lysimachia arvensis)
Family: Primulaceae (primrose family)
Hellyer Park
April 29, 2020
Canon 7Dmark2

()
Family:
Hellyer Park
April 29, 2020
Canon 7Dmark2

Dock ()
Family:
Hellyer Park
April 29, 2020
Canon 7Dmark2

Manroot (Marah)
Family: Cucurbitaceae
Hellyer Park
April 29, 2020
Canon 7Dmark2

Man-root fruit

Manroot (Marah)
Family: Cucurbitaceae
Hellyer Park
April 29, 2020
Canon 7Dmark2

Coast Redwood (Sequoia sempervirens)
Family: Cupressaceae (cypress family)
Hellyer Park
April 29, 2020
Canon 7Dmark2

Coast Redwood (Sequoia sempervirens)
Family: Cupressaceae (cypress family)
Hellyer Park
April 29, 2020
Canon 7Dmark2

Dandelion ()
Family: Asteraceae
Hellyer Park
April 29, 2020
Canon 7Dmark2

Dog vomit slime mold (Fuligo septica)
Family: Physaraceae
Hellyer Park
April 29, 2020
Canon 7Dmark2

Dog vomit slime mold (Fuligo septica)
Family: Physaraceae
Hellyer Park
April 29, 2020
Canon 7Dmark2

()
Family:
Hellyer Park
April 29, 2020
Canon 7Dmark2

()
Family:
Hellyer Park
April 29, 2020
Canon 7Dmark2

()
Family:
Hellyer Park
April 29, 2020
Canon 7Dmark2

()
Family:
Hellyer Park
April 29, 2020
Canon 7Dmark2

(Armillaria sinapina)
Family: Physalacriaceae
Hellyer Park
April 29, 2020
Canon 7Dmark2

()
Family:
Hellyer Park
April 29, 2020
Canon 7Dmark2

Pipe dreams

Hellyer Park
April 29, 2020
Canon 7Dmark2

Smiley face rocks

Hellyer Park
April 29, 2020
Canon 7Dmark2

()
Family:
Hellyer Park
April 29, 2020
Canon 7Dmark2

Masked Deb

Hellyer Park
April 29, 2020
Canon 7Dmark2

Exhibiting symptoms

Coronavirus
Family: Coronaviridae
Hellyer Park
April 29, 2020
Canon 7Dmark2

Serpentinite

()
Family:
Hellyer Park
April 29, 2020
Canon 7Dmark2

Phoebe with moth

()
Family:
Hellyer Park
April 29, 2020
Canon 7Dmark2

Chestnut-backed chickadee

()
Family:
Hellyer Park
April 29, 2020
Canon 7Dmark2

Harbinger

American robin (Turdus migratorius)
Family: Turdidae (thrushes, robins)
Hellyer Park
April 29, 2020
Canon 7Dmark2

Hellyer Park Winter Bioblitz
February 8, 2020

Coot approaching

American coot (Fulica americana)
Family: Rallidae
Hellyer Park Winter 2020 Bioblitz
February 8, 2020
Canon 7Dmark2

Coot approaching

American coot (Fulica americana)
Family: Rallidae
Hellyer Park Winter 2020 Bioblitz
February 8, 2020
Canon 7Dmark2

Killdeer and daisies

Killdeer (Charadrius vociferus)
Family: Charadriidae (plovers,lapwings, killdeer, queltehue, and dotterels)
Common daisy (Bellis perennis)
Family: Asteraceae (sunflowers, daisies, asters)
Hellyer Park Winter 2020 Bioblitz
February 8, 2020
Canon 7Dmark2

Mallard

Mallard ()
Family: Anatidae
Hellyer Park Winter 2020 Bioblitz
February 8, 2020
Canon 7Dmark2

Goose

Canada goose (Branta canadensis)
Family: Anatidae
Hellyer Park Winter 2020 Bioblitz
February 8, 2020
Canon 7Dmark2

Gosling in the road

Canada goose (Branta canadensisResearch Grade)
Family: Anatidae
Hellyer Park
April 29, 2020
Canon 7Dmark2

Great egret (Ardea alba)
Family: Ardeidae (herons, egrets, bitterns)
Hellyer Park Winter 2020 Bioblitz
February 8, 2020
Canon 7Dmark2

Egret the Great

Great egret (Ardea alba)
Family: Ardeidae (herons, egrets, bitterns)
Hellyer Park Winter 2020 Bioblitz
February 8, 2020
Canon 7Dmark2

Blue

Blue heron ()
Hellyer Park Winter 2020 Bioblitz
February 8, 2020
Canon 7Dmark2

Song sparrow (Melospiza melodia)
Family: Passerellidae (New World sparrows)
Hellyer Park Winter 2020 Bioblitz
February 8, 2020
Canon 7Dmark2

Pied-billed grebe (Podilymbus podiceps)
Family: Podicipedidae (grebes)
Hellyer Park Winter 2020 Bioblitz
February 8, 2020
Canon 7Dmark2

Grebe diving

Pied-billed grebe (Podilymbus podiceps)
Family: Podicipedidae (grebes)
Hellyer Park Winter 2020 Bioblitz
February 8, 2020
Canon 7Dmark2

Benched

Dark-eyed junco (Junco hyemalis)
Family: Passerellidae (New World sparrows)
Hellyer Park Winter 2020 Bioblitz
February 8, 2020
Canon 7Dmark2

Audubon's yellow-rumped warbler (Setophaga coronata auduboni)
Family: Parulidae (New World warblers)
Hellyer Park Winter 2020 Bioblitz
February 8, 2020
Canon 7Dmark2

Audubon's yellow-rumped warbler (Setophaga coronata auduboni)
Family: Parulidae (New World warblers)
Hellyer Park Winter 2020 Bioblitz
February 8, 2020
Canon 7Dmark2

Starling of the show

European starling ()
Family: ()
Hellyer Park Winter 2020 Bioblitz
February 8, 2020
Canon 7Dmark2

One of these things

Double crested cormorant ()
Family: Phalacrocoracidae (cormorants and shags)
Hellyer Park Winter 2020 Bioblitz
February 8, 2020
Canon 7Dmark2

Domestic Greylag goose (Anser anser domesticus)
Family: Anatidae
Hellyer Park Winter 2020 Bioblitz
February 8, 2020
Canon 7Dmark2

Domestic Greylag goose (Anser anser domesticus)
Family: Anatidae
Hellyer Park Winter 2020 Bioblitz
February 8, 2020
Canon 7Dmark2

Red Shouldered hawk ()
Hellyer Park Winter 2020 Bioblitz
February 8, 2020
Canon 7Dmark2

False black widow (Steatoda grossa)
Family: Theridiidae (cobweb spiders)
Hellyer Park Winter 2020 Bioblitz
February 8, 2020
Canon 7Dmark2

spider ()
Hellyer Park Winter 2020 Bioblitz
February 8, 2020
Canon 7Dmark2

spider ()
Hellyer Park Winter 2020 Bioblitz
February 8, 2020
Canon 7Dmark2

spider ()
Hellyer Park Winter 2020 Bioblitz
February 8, 2020
Canon 7Dmark2

()
Hellyer Park Winter 2020 Bioblitz
February 8, 2020
Canon 7Dmark2

Wiggly

()
Hellyer Park Winter 2020 Bioblitz
February 8, 2020
Canon 7Dmark2

Arthropods

(Gammarus daiberi)
Family Gammaridae
Hellyer Park Winter 2020 Bioblitz
February 8, 2020
Canon 7Dmark2

Tussock moth ()
Hellyer Park Winter 2020 Bioblitz
February 8, 2020
Canon 7Dmark2

Tussock moth coccoon

Tussock moth ()
Hellyer Park Winter 2020 Bioblitz
February 8, 2020
Canon 7Dmark2

beetle ()
Hellyer Park Winter 2020 Bioblitz
February 8, 2020
Canon 7Dmark2

Tenebrid beetle (Eleodes)
Hellyer Park Winter 2020 Bioblitz
February 8, 2020
Canon 7Dmark2

()
Hellyer Park Winter 2020 Bioblitz
February 8, 2020
Canon 7Dmark2

fish ()
Hellyer Park Winter 2020 Bioblitz
February 8, 2020
Canon 7Dmark2

Dead fish

fish ()
Hellyer Park Winter 2020 Bioblitz
February 8, 2020
Canon 7Dmark2

Mollusc

Sluggo

Chestnut slug (Deroceras invadens)
Family: Agriolimacidae
Hellyer Park Winter 2020 Bioblitz
February 8, 2020
Canon 7Dmark2

Chestnut slug (Deroceras invadens)
Family: Agriolimacidae
Hellyer Park Winter 2020 Bioblitz
February 8, 2020
Canon 7Dmark2

Fungi

Mushroom

Stubble Rosegill (Volvopluteus gloiocephalus )
Family Pluteaceae
Hellyer Park Winter 2020 Bioblitz
February 8, 2020
Canon 7Dmark2

Mushroom

Stubble Rosegill (Volvopluteus gloiocephalus )
Family Pluteaceae
Hellyer Park Winter 2020 Bioblitz
February 8, 2020
Canon 7Dmark2

Blushing Rosette (Abortiporus biennis)
Hellyer Park Winter 2020 Bioblitz
February 8, 2020
Canon 7Dmark2

()
Hellyer Park Winter 2020 Bioblitz
February 8, 2020
Canon 7Dmark2

Flora

PO

Pacific poison oak (Toxicodendron diversilobum)
Family: Anacardiaceae (sumac, cashew, poison oak)
Hellyer Park Winter 2020 Bioblitz
February 8, 2020
Canon 7Dmark2

Blackberry butterfly

Trailing blackberry (Rubus ursinus)
Hellyer Park Winter 2020 Bioblitz
February 8, 2020
Canon 7Dmark2

Sweet clover, sweet clover

White sweetclover (Melilotus albus)
Family: Fabaceae (legumes, peas, beans, clovers)
Hellyer Park Winter 2020 Bioblitz
February 8, 2020
Canon 7Dmark2

()
Hellyer Park Winter 2020 Bioblitz
February 8, 2020
Canon 7Dmark2

Juniper ()
Hellyer Park Winter 2020 Bioblitz
February 8, 2020
Canon 7Dmark2

Common ivy (Hedera helix)
Family: Araliaceae (ivy family)
Hellyer Park Winter 2020 Bioblitz
February 8, 2020
Canon 7Dmark2

Feline appendage

Narrow-leaved cattail (Typha angustifolia)
Family: Typhaceae (bullrushes and cattails)
Hellyer Park Winter 2020 Bioblitz
February 8, 2020
Canon 7Dmark2

P & J

()
Hellyer Park Winter 2020 Bioblitz
February 8, 2020
Canon 7Dmark2

Tree and lake

()
Hellyer Park Winter 2020 Bioblitz
February 8, 2020
Canon 7Dmark2

Wood ()
Hellyer Park Winter 2020 Bioblitz
February 8, 2020
Canon 7Dmark2

People

Jennifer and Bob

Hellyer Park Winter 2020 Bioblitz
February 8, 2020
Canon 7Dmark2

Advait and Bob

Hellyer Park Winter 2020 Bioblitz
February 8, 2020
Canon 7Dmark2

Advait

Advait
Hellyer Park Winter 2020 Bioblitz
February 8, 2020
Canon 7Dmark2

Bioblitzing

Advait and egret
Hellyer Park Winter 2020 Bioblitz
February 8, 2020
Canon 7Dmark2

Waiting for the starting gun

Hellyer Park Winter 2020 Bioblitz
February 8, 2020
Canon 7Dmark2

Prospecting for organisms

Hellyer Park Winter 2020 Bioblitz
February 8, 2020
Canon 7Dmark2

()
Hellyer Park Winter 2020 Bioblitz
February 8, 2020
Canon 7Dmark2

Merav

Hellyer Park Winter 2020 Bioblitz
February 8, 2020
Canon 7Dmark2

Hellyer Park Winter 2020 Bioblitz
February 8, 2020
Canon 7Dmark2

()
Hellyer Park Winter 2020 Bioblitz
February 8, 2020
Canon 7Dmark2

Poop fairy

Toilets
Hellyer Park Winter 2020 Bioblitz
February 8, 2020
Canon 7Dmark2

Ron

Hellyer Park Winter 2020 Bioblitz
February 8, 2020
Canon 7Dmark2

Ranging

()
Hellyer Park Winter 2020 Bioblitz
February 8, 2020
Canon 7Dmark2

On a long leash

Dog (Canis)
Family: Canidae
Hellyer Park Winter 2020 Bioblitz
February 8, 2020
Canon 7Dmark2

Related pages:

Hellyer 2019

Hellyer 2020

Bioblitzes

Coyote Creek

Bay Area pictures

Bioblitz

Last modified: August 2, 2020
Created: February 11, 2020 (from hellyer.html)
Contact: siegelr@stanford.edu
All pictures are protected by copyright. Do not use without permission.