Butterfly sightings for May 2021

May 1

Mike Reese

Location: Private lands near the Embarrass River
Shawano County

I had thought that these would be Mustard Whites but didn't have a camera nor binoculars when I first saw them, After counting 15 white butterflies I went back and took these photos of one. Almost all appeared to be laying eggs on Broad-leaved Toothwort (Cardamine diphylla) and I was only able to catch up to this one, which was more my speed. The next day I was able to see both Mustard White and Cabbage White so I don't know the exact numbers.

West Virginia White

West Virginia White

West Virginia White

West Virginia White

★ = New county photo record
☆ = New county sighting record

May 1

Rory Williams

Location: White River State Natural Area
Green Lake County

Thanks to Jeff Lang of the DNR who gave me a location in White River that had white pines as we were in search of pine elfins. We also saw eight six spotted Tiger Beetles

Six-spotted Tiger Beetle

Six-spotted Tiger Beetle

Eastern Pine Elfin

Eastern Pine Elfin

Eastern Pine Elfin

Eastern Pine Elfin

Eastern Pine Elfin

Eastern Pine Elfin

Mourning Cloak

Mourning Cloak

Juvenal's Duskywing

Juvenal's Duskywing

Juvenal's Duskywing

Juvenal's Duskywing

★ = New county photo record
☆ = New county sighting record

May 1

Jay Watson

Location: Backyard Rosecrans
Manitowoc County

70F, sunny, very windy south; black swallowtail flying across the road.

May 1

Ann Thering

Location: My Garden
Dane County

May 1

Ethan Brown

Location: Milwaukee Park Way
Milwaukee County

Very windy but 83 degrees.

May 1

Mary Jo Sundling

Location: Throughout the yard and fields by our cabin in Winter.
Sawyer County

Sunny, breezy, 80 degree day.

May 1

Dawn Buxton

Location: Township of Elcho near Post Lake
Langlade County

'Spring' Spring Azure

'Spring' Spring Azure

May 1

Randy Powers

Location: Worchester Township
Price County

1-3 Pm, Gusty Wilds, Sunny The temperature is climbing from 65 to by the time I am ready to leave Spruce Lane a high of 86 degrees! 42 spring azures divided into 3 different groups!

'Spring' Spring Azure

'Spring' Spring Azure

'Spring' Spring Azure

'Spring' Spring Azure

'Spring' Spring Azure

'Spring' Spring Azure

Mourning Cloak

Mourning Cloak

Mourning Cloak

Mourning Cloak

Compton Tortoiseshell

Compton Tortoiseshell

Broad-winged Hawk

Broad-winged Hawk

Common Claybank Tiger Beetle

Common Claybank Tiger Beetle

'Spring' Spring Azure

'Spring' Spring Azure

'Spring' Spring Azure

'Spring' Spring Azure

'Spring' Spring Azure

'Spring' Spring Azure

May 1

Karl and Dorothy Legler

Location: Necedah National Wildlife Refuge
Juneau County

87degrees and sunny. But it was very windy making it very difficult to photograph. Relatively limited nectar sources.

Olympia Marble

Olympia Marble

Juvenal's Duskywing

Juvenal's Duskywing

Eastern Pine Elfin

Eastern Pine Elfin

May 1

Scott and Ann Swengel

Location: Bogs near Amnicon Lake
Douglas County

80+ degrees F. We surveyed Lyman Lake Bog and its roadside, Bear Lake and North Bear Lake Bogs, and Milchesky Road 1.75 Bog hoping to see Freija Fritillaries and Red-disked Alpines. The Mourning Cloak was near, but not on, a bog. Because we found so few butterflies we didn't survey the last 4 bogs on this route.

May 1

Mike Reese

Location: Jung Hemlock-Beech Forest SNA
Shawano County

I went here after finding the West Virginia White to look for another possible location.

Mustard White

Mustard White

Mustard White

Mustard White

May 1

Terry Mortier

Location: Fish Lake Wildlife Area
Burnett County

Hot windy afternoon. Several stops on Hickerson and Stolte Rds. The Olympia Marbles were nectaring on sand/rock cress.

Eastern Tailed-Blue

Eastern Tailed-Blue

Olympia Marble

Olympia Marble

May 2

Stan Rehm

Location: Fitchburg residential butterfly garden
Dane County

The earliest we've ever seen a Tiger in our garden.

May 2

D Nussbaum

Location: WIOUWASH Trail
Winnebago County

Walked the fourth mile from the south. Yesterday I walked the third mile and saw three Cabbages. The pic is from yesterday. Less wind today.

Cabbage White

Cabbage White

May 2

Pamela Skaar

Location: Cherokee Marsh NRA, East Trailhead
Dane County

walked on southwestern pathways towards the prep academy and river. 8:32-10:15, 66 - 72 F, SW wind 10- 8 mph with gusts to 22 mph. 1.36 miles

May 2

Joan Braune and Tod Highsmith

Location: Spring Green Preserve
Dane County

There were around 12 duskywings - some were probably Sleepy Duskywings but we only identified the Juvenal's Duskywings for sure.

May 2

April Stanke

Location: Donges Bay Gorge (OWLT)
Ozaukee County

American Lady

American Lady

May 2

Kate Redmond

Location: Riveredge Nature Center
Ozaukee County

Eastern Tailed-Blue

Eastern Tailed-Blue

Gray Comma

Gray Comma

Gray Comma

Gray Comma

May 2

Dave Hogg

Location: Waunakee, butterfly garden at 1304 Lawton Ct
Dane County

May 2

Jay Watson

Location: Backyard Rosecrans
Manitowoc County

75F, partly sunny, calm; 3 six-spotted tiger beetles

Six-spotted Tiger Beetle

Six-spotted Tiger Beetle

May 2

Rich Kahl & Laurie Yahr

Location: Muralt Bluff SNA
Green County

May 2

Mary Jo Sundling

Location: Along the trails on our property in Winter.
Sawyer County

Cloudy 64 degree morning.

Mourning Cloak

Mourning Cloak

May 2

Ethan Brown

Location: Cedarburg Bog off 33
Ozaukee County

82 degrees.

May 2

Judith Huf

Location: my garden in Whitefish Bay
Milwaukee County

warm and sunny

'Spring' Spring Azure

'Spring' Spring Azure

May 2

Jeannie van Vianen

Location: Yellowstone Lake State Park
Lafayette County

May 3

Milwaukee County Parks Natural Areas Staff

Location: Johnstone Park
Milwaukee County

May 3

Milwaukee County Parks Natural Areas Staff

Location: Oak Creek Parkway in South Milwaukee
Milwaukee County

May 4

Fred Dike

Location: Avoca Prairie
Iowa County

high 50s, partly sunny, breezy

May 4

Daniel Jackson

Location: Jackson Property 1/4 mile south of Chaseburg off of County K
Vernon County

May 4

Fred Dike

Location: Spring Green Preserve
Sauk County

high 50s, partly sunny, breezy

Clouded Sulphur

Clouded Sulphur

Clouded Sulphur

Clouded Sulphur

Eastern Tailed-Blue

Eastern Tailed-Blue

Eastern Tailed-Blue

Eastern Tailed-Blue

May 5

Scott and Ann Swengel

Location: Barrens inside Sandhill Wildlife Area
Wood County

Two long-term elfin monitoring sites where we historically found Frosted Elfins, and one site that is mainly for Henry's Elfin long-term monitoring. We also saw 2 unidentified duskywings.

May 5

Daniel Jackson

Location: Timberwood Lane walking trail, Holmen
La Crosse County

Juvenal's Duskywing

Juvenal's Duskywing

May 5

Fred Dike

Location: Avon Bottoms
Rock County

about 60 degrees, mostly sunny, slight breeze

Pearl Crescent

Pearl Crescent

May 5

Kate Redmond

Location: Riveredge Nature Center trail along the river from the west parking lot
Ozaukee County

A beautiful May day. The Swallowtail was the hairiest swallowtail I've ever seen.

Eastern Tiger Swallowtail

Eastern Tiger Swallowtail

Mourning Cloak

Mourning Cloak

May 5

Kate Redmond

Location: Cedarburg Bog - north trails off Hwy 33
Ozaukee County

'Spring' Spring Azure

'Spring' Spring Azure

Eastern Comma

Eastern Comma

May 5

Mary Jo Sundling

Location: Prairie area and trail by Admunson Park in Stoughton
Dane County

Sunny, breezy, 60 degree afternoon.

Cabbage White

Cabbage White

Cabbage White

Cabbage White

Clouded Sulphur

Clouded Sulphur

May 5

Judith Huf

Location: Horicon NWR- Dike Road
Dodge County

Mostly birding, was surprised to see a Black Swallowtail which was joined by another right after I took this shot.

Black Swallowtail

Black Swallowtail

May 5

Milwaukee County Parks Natural Areas Staff

Location: WI Avenue Park
Milwaukee County

Clouded Sulphur

Clouded Sulphur

Cabbage White

Cabbage White

May 5

Mike Reese

Location: Northwest of Mount Morris on DNR lands
Waushara County

I have been observing the Henry's Elfin here for over 30 years at one of the southernmost locations in Wisconsin.

Juvenal's Duskywing

Juvenal's Duskywing

Juvenal's Duskywing

Juvenal's Duskywing

Henry's Elfin

Henry's Elfin

May 5

Milwaukee County Parks Natural Areas Staff

Location: Barloga Woods
Milwaukee County

Eastern Tailed-Blue

Eastern Tailed-Blue

May 5

Scott and Ann Swengel

Location: Barrens near Sandhill Wildlife Area
Wood County

Four patches adjoining County Highway X. All have past Frosted Elfin records but the most recent was in 2010. We monitor these sites long-term for all 5 elfins and other butterflies. We also saw 7 unidentified duskywings. The Meadow Fritillary count is higher than usual for these sites.

May 6

Pam Campbell

Location: Chippewa County Riverside Reserve
Chippewa County

Seen while birding before 11am.

Juvenal's Duskywing

Juvenal's Duskywing

Juvenal's Duskywing

Juvenal's Duskywing

Olympia Marble

Olympia Marble

★ = New county photo record
☆ = New county sighting record

May 6

Terry Mortier

Location: Crex Meadows SWA
Burnett County

Very windy and cool.

Silvery Blue

Silvery Blue

Silvery Blue

Silvery Blue

Henry's Elfin

Henry's Elfin

May 7

Terry Mortier

Location: Fish Lake SWA
Burnett County

Cool and windy

Olympia Marble

Olympia Marble

Silvery Blue

Silvery Blue

May 7

Dean Hansen

Location: Crex Meadows SWA
Burnett County

Temperature was a cool 48-52 degrees for the couple hours (3-5PM) spent on Crex. The few butterflies seen were in protected areas, e.g., north roadside of Klotz Rd. just east of James Rd., with an oak forest to the north to stop the wind. The Silvery Blue and Duskywing were seen here. Four Olympia Marbles were on the south-facing slope below Crex Ridge Road.

Silvery Blue

Silvery Blue

Olympia Marble

Olympia Marble

May 8

Terry Mortier

Location: Fish Lake SWA
Burnett County

Partly cloudy, light wind

Juvenal's Duskywing

Juvenal's Duskywing

'Spring' Spring Azure

'Spring' Spring Azure

Persius Duskywing

Persius Duskywing

Silvery Blue

Silvery Blue

Dreamy Duskywing

Dreamy Duskywing

May 8

Terry Mortier

Location: Crex Meadows SWA
Burnett County

Late afternoon ,early evening ,cloudy ,light wind

Henry's Elfin

Henry's Elfin

Juvenal's Duskywing

Juvenal's Duskywing

May 8

Peter and Charlotte Silvers

Location: Belleville Community Park/Sugar River
Dane County

51 deg., overcast

Pearl Crescent

Pearl Crescent

May 8

Ethan Brown

Location: Riveredge Nature Center
Ozaukee County

Saw 2 cabbage whites on the way driving there. Overall, kind of a cool day. Only about 52 degrees. We stopped at the Cedarburg Bog on the way home but we did not see anything.

May 8

Stephen Braband

Location: Quincy Bluffs and Wetlands
Adams County

Walking the trail from the parking lot and spotted 4 flying and one landed for me to take a picture. It was 2PM when I saw them

Juvenal's Duskywing

Juvenal's Duskywing

Juvenal's Duskywing

Juvenal's Duskywing

May 8

Joey Reichhoff

Location: Spring Green Preserve
Sauk County

Common Roadside-Skipper

Common Roadside-Skipper

May 8

Ryan Brady

Location: Long Lake west of Washburn
Bayfield County

First-of-year (FOY) Spring Azure

May 9

Jeannie van Vianen

Location: Kettle Moraine State Forest - Ice Age Trail Stony Ridge Segment
Waukesha County

Very conservative estimate on Juvenal's Duskywings- they were all over the forested parts of the trail

May 9

Pam Campbell

Location: Red Cedar Trail near Downsville
Dunn County

While birding, all before noon. One Swallowtail verified Eastern by binocular view. (One more flyby seen.) Plus FOY Tiger beetle.

Six-spotted Tiger Beetle

Six-spotted Tiger Beetle

Eastern Pine Elfin

Eastern Pine Elfin

Eastern Pine Elfin

Eastern Pine Elfin

Meadow Fritillary

Meadow Fritillary

May 9

Amy Chamberlin

Location: Moely Prairie, Prairie du Sac, WI
Sauk County

Saw our first Pearl Crescents of the year!

Pearl Crescent

Pearl Crescent

Clouded Sulphur

Clouded Sulphur

Eastern Tailed-Blue

Eastern Tailed-Blue

Pearl Crescent

Pearl Crescent

May 9

Douglas Buege

Location: Saul Springs Road
Oconto County

Green Comma

Green Comma

Green Comma

Green Comma

May 9

Ethan Brown

Location: Mequon Nature Preserve
Ozaukee County

I believe it is the first SS Skipper and PL. Very windy and impossible to take a picture.

May 9

Peter and Charlotte Silvers

Location: Garmen Nature Preserve, Waterloo
Jefferson County

58 deg., mostly sunny

Silver-spotted Skipper

Silver-spotted Skipper

morel

morel

May 9

Patrick Ready

Location: Brigham County Park
Dane County

Walking along the restored prairie and cut lawn I saw it land in the grass. Sunny, breezy, 55 degrees.

Meadow Fritillary

Meadow Fritillary

May 9

Rose Tiegs

Location: Navarino wildlife area
Shawano County

Swallowtail was on some raspberry blossom and shrub blossoms, unfortunately there was a lot of wood ticks .

Eastern Tiger Swallowtail

Eastern Tiger Swallowtail

May 9

Jeannie van Vianen

Location: Paradise Springs SNA
Waukesha County

May 9

D Nussbaum

Location: WIOUWASH at Brooks Rd.
Winnebago County

Eastern Tiger Swallowtail

Eastern Tiger Swallowtail

Orange Sulphur

Orange Sulphur

May 10

Mary Jo Sundling

Location: Prairie area and trails by Admunson Park in Stoughton
Dane County

Partly sunny, breezy, 50 degree afternoon.

Cabbage White

Cabbage White

Cabbage White

Cabbage White

May 11

Bob Jacobson

Location: Old field north of the City of Bloomer
Chippewa County

Sparsely vegetated sandy/gravelly field with small clumps of grasses, mosses and lichens

American Copper

American Copper

May 11

Mary Jo Sundling

Location: Yahara River Trail in Stoughton
Dane County

Sunny, windy, 50 degree afternoon.

May 11

Sue Meyer

Location: Pleasant Valley Township, Stonebrook Ridge Subdivision
Eau Claire County

One Eastern Tiger Swallowtail sighted on my property 5:00pm. , feeding on dandelions.

Eastern Tiger Swallowtail

Eastern Tiger Swallowtail

May 11

Daniel Jackson

Location: Jackson Property - Rural Chaseburg
Vernon County

May 12

Ethan Brown

Location: Mequon Nature Preserve
Ozaukee County

The Gorgones are finally out! Males emerge earlier than the females. Black swallowtails were also all males.

Also my Virginia ctenucha emerged.

Virginia Ctenucha

Virginia Ctenucha

May 12

Mike Reese

Location: Smith Slough and Sand Prairie
Richland County

Juvenal's Duskywing

Juvenal's Duskywing

Eastern Pine Elfin

Eastern Pine Elfin

Common Roadside-Skipper

Common Roadside-Skipper

★ = New county photo record
☆ = New county sighting record

May 12

Ilona Loser

Location: Cross Plains - yard
Dane County

May 12

Mike Reese

Location: Avoca Wildlife Area
Iowa County

most of the sulphurs were along the access along Hay Rd.

May 12

Daniel Jackson

Location: Jackson Property, rural Chaseburg
Vernon County

May 12

Daniel Jackson

Location: Sugar Creek Bluff Property
Crawford County

May 12

Dean Hansen

Location: Crex Meadows SWA, and to the NE
Burnett County

Gravel roads at Crex were dry, not attracting any butterflies. Animal scat at Reed Lake certainly was, however. Numerous (over 50) flighty duskywing skippers went unidentified. I have never seen as many Henry's Elfins in a day before. Sites where Eastern Pine and Brown Elfins were seen in years past were barren. I checked extensive stands of bearberry north of Clemens Creek Firebreak on the Namekagon Barrens but saw no Hoary Elfins. Mostly sunny, temperature in low 60s.

'Spring' Spring Azure

'Spring' Spring Azure

Silvery Blue

Silvery Blue

Sleepy Duskywing

Sleepy Duskywing

Henry's Elfin

Henry's Elfin

4 blue species party!

4 blue species party!

Mottled Duskywing

Mottled Duskywing

May 13

Mary Jo Sundling

Location: Yahara River Trail near Admunson Park in Stoughton
Dane County

Mostly sunny, 65 degree afternoon.

Clouded Sulphur

Clouded Sulphur

Clouded Sulphur

Clouded Sulphur

May 13

Pamela Skaar

Location: Mirror Lake SP Northwest Trail
Sauk County

This trail traverses multiple habitats. 3.4 miles, 10:35-14:25, variable wind direction 9- 5 mph, fair to partly cloudy, 64 - 68 F. The Pine Elfin and one Olympia Marble were nectaring on garlic mustard. The Mustard Whites were on it before they flew but I don't know if they were feeding.

Juvenal's Duskywing

Juvenal's Duskywing