Photos / Sounds

What

Oso Flaco Flightless Moth Areniscythris brachypteris

Observer

kueda

Date

July 25, 2015 11:16 AM PDT

Place

(Somewhere...)

Description

The morning's prize: the Oso Flaco Flightless Moth. Powell described this species in 1972 based on collections from the nearby Dune Lakes, which are apparently inaccessible these days. As you might guess the moth cannot fly, but it does have enlarged hind legs that allow it to jump up and get carried by the breeze that is almost always blowing over the dunes. Its mixture of scurrying and wind-catching is pretty much how you find it, because as you can see it's really small and perfectly camouflaged in the sand. I believe it's the only species of moth in North America where both males and females cannot fly.

They like active sand and diurnal. Powell recommended looking for them on exposed slopes in the dunes near vegetation, though we ended up finding them at the crest of a dune. The larval tubes can be found by digging fairly close to the surface under vegetation. They attach to the roots so the larvae can feed.

Liam, of course, spotted them first, and Powell had not seen them for many years, so it was a good day for all.

Photos / Sounds

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What

Yellow-rumped Warbler Setophaga coronata

Observer

dpom

Date

October 19, 2013 02:53 PM PDT

Photos / Sounds

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What

Painted Lady Vanessa cardui

Observer

dpom

Date

October 19, 2013 02:53 PM PDT

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What

Pied-billed Grebe Podilymbus podiceps

Observer

dpom

Date

October 19, 2013 02:53 PM PDT

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What

Mallard Anas platyrhynchos

Observer

dpom

Date

October 19, 2013 02:53 PM PDT

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White-breasted Nuthatch Sitta carolinensis

Observer

dpom

Date

October 19, 2013 02:53 PM PDT

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What

Townsend's Warbler Setophaga townsendi

Observer

dpom

Date

October 19, 2013 02:53 PM PDT

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Orange-crowned Warbler Oreothlypis celata

Observer

dpom

Date

October 19, 2013 02:53 PM PDT

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What

Hermit Warbler Setophaga occidentalis

Observer

dpom

Date

October 19, 2013 02:53 PM PDT

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What

Downy Woodpecker Picoides pubescens

Observer

dpom

Date

October 19, 2013 02:53 PM PDT

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What

Blue-winged Warbler Vermivora cyanoptera

Observer

dpom

Date

October 19, 2013 02:53 PM PDT

Description

Mega-rarity!

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What

Black-throated Gray Warbler Setophaga nigrescens

Observer

dpom

Date

October 19, 2013 02:53 PM PDT

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What

American Kestrel Falco sparverius

Observer

dpom

Date

October 19, 2013 02:53 PM PDT

Photos / Sounds

What

Behr's Metalmark Apodemia virgulti

Observer

robberfly

Date

July 19, 2015 03:42 PM PDT

Place

(Somewhere...)

Description

We went to Oso Flaco Lake to search for flightless moth Dr. Powell had discovered there decades back. No moth. Amazing place.

Plants

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What

Plants Kingdom Plantae

Observer

jennifercole

Date

July 16, 2015 07:34 AM PDT

Description

6 ft tall- by state park trail

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What

Coyote Brush Baccharis pilularis

Observer

charlie

Date

July 12, 2015 03:26 PM PDT

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What

western sycamore Platanus racemosa

Observer

charlie

Date

July 12, 2015 03:25 PM PDT

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What

Green pin-cushion alga Cladophora columbiana

Observer

rmedina

Date

August 17, 2013 11:05 PM EDT

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What

Sea Lettuce Ulva lactuca

Observer

rmedina

Date

August 17, 2013 11:00 PM EDT

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What

Heermann's Gull Larus heermanni

Observer

rmedina

Date

August 17, 2013 10:52 PM EDT

Place

(Somewhere...)

Photos / Sounds

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What

Brown Pelican Pelecanus occidentalis

Observer

rmedina

Date

August 18, 2013 01:18 AM EDT

Description

Pelecanus occidentalis

Photos / Sounds

What

California Sea Lion Zalophus californianus

Observer

rmedina

Date

August 18, 2013 01:33 AM EDT

Description

Zalophus californianus

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What

White-crowned Sparrow Zonotrichia leucophrys

Observer

dwest

Date

July 2, 2015 10:21 AM PDT

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What

Mourning Dove Zenaida macroura

Observer

dwest

Date

July 2, 2015 10:21 AM PDT

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Coastal Western Scrub-Jay Aphelocoma californica ssp. californica

Observer

dwest

Date

July 2, 2015 10:14 AM PDT

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What

Dark-eyed Junco Junco hyemalis

Observer

dwest

Date

July 2, 2015 10:14 AM PDT

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What

Acorn Woodpecker Melanerpes formicivorus

Observer

dwest

Date

July 2, 2015 09:56 AM PDT

Description

Male

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What

Common Raven Corvus corax

Observer

dwest

Date

July 2, 2015 09:56 AM PDT

Description

Seemed like a youngster waiting for parental guidance.

Photos / Sounds

What

Monarch Danaus plexippus

Observer

rhislop

Date

January 23, 2014

Description

Overwintering clusters (several thousand butterflies). I picked one up off the ground (photo).

Photos / Sounds

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What

Western Bluebird Sialia mexicana

Observer

eib9

Date

May 31, 2015 07:53 AM PDT

Description

The breast was a lot darker than the western bluebird though so I'm not entirely sure