Posts Tagged ‘Accotink Bay Wildlife Refuge’

Blue-fronted Dancers (male, female)

March 22, 2019

Male

A Blue-fronted Dancer damselfly (Argia apicalis) was spotted near Mulligan Pond at Jackson Miles Abbott Wetland Refuge, Fairfax County, Virginia USA.

This individual is a male, as indicated by the pattern of blue coloration on his thorax and abdomen, plus the blue coloration on abdominal segments eight through 10 (S8-10).

25 SEP 2016 | Jackson Miles Abbott WR | Blue-fronted Dancer (male)

Female

Several Blue-fronted Dancers were spotted during a photowalk along Accotink Creek/Great Blue Heron Trail at Accotink Bay Wildlife Refuge (ABWR), Fairfax County, Virginia USA.

The first individual is a female, as indicated by two field marks.

Eyes brown, darker above; lack of blue in eyes in andromorph good distinction from male. Source Credit: Paulson, Dennis (2011-12-19). Dragonflies and Damselflies of the East (Princeton Field Guides) (Kindle Locations 3451-3452). Princeton University Press. Kindle Edition.

Female Blue-fronted Dancers are polymorphicandromorph females are blue like males; heteromorph females are brown-green. Andromorph females tend to be a lighter shade of blue than males of the same species.

This individual is a blue andromorph. Regardless of the color morph…

females never have blue on the last abdominal segments (S8-10). Source Credit: Michael Boatwright, founder and administrator of the Virginia Odonata Facebook group.

02 AUG 2016 | ABWR | Blue-fronted Dancer (female)

More males

Two male Blue-fronted Dancers were spotted at Accotink Bay Wildlife Refuge.

02 AUG 2016 | ABWR | Blue-fronted Dancer (male)

02 AUG 2016 | ABWR | Blue-fronted Dancer (male)

Copyright © 2019 Walter Sanford. All rights reserved.

Advertisements

Late bloomers

March 11, 2019

This blog post features photos of two late-summer flowering plants: Garden Phlox; and Common Evening Primrose.

Garden Phlox

A small plot of Garden Phlox (Phlox sp.) was spotted growing along Great Blue Heron Trail, beside Accotink Creek at Accotink Bay Wildlife Refuge, Fairfax County, Virginia USA. This species is a garden variety that escaped into the wild.

Common Evening Primrose

Common Evening Primrose (Oenothera sp.) was spotted in a shady location alongside Deephole Point Road at Occoquan Bay National Wildlife Refuge, Prince William County, Virginia USA.

Evening Primrose is quite common but sometimes is not noticed because the flowers close up in bright light… Source Credit: Alonso Abugattas Jr, Natural Resources Manager for Arlington County Parks, Virginia USA.

Credits

Sincere thanks to members of the Capital Naturalist Facebook group for help in identifying these flowering plants.

Copyright © 2019 Walter Sanford. All rights reserved.

Top 10 Photos of 2017

January 1, 2018

The following gallery shows 32 finalists for my “Top 10 Photos of 2017.” The photos are presented in reverse-chronological order beginning in November 2017 and ending in April 2017.

The Top 10 photos will be selected using reader feedback. Please enter a comment at the end of this post listing the number for each of your 10 favorite photos. If listing 10 photos is asking too much, then please list at least five photos, e.g., No. 5, 8, 14, 17, 21, etc. Thanks for sharing your selections, and thanks for following my photoblog!

No. 1

No. 2

No. 3

27 OCT 2017 | MRA | Autumn Meadowhawk (mating pair, “in tandem“)

No. 4

No. 5

No. 6

No. 7

No. 8

No. 9

No. 10

No. 11

No. 12

No. 13

No. 14

No. 15

No. 16

No. 17

No. 18

No. 19

No. 20

No. 21

20 JUN 2017 | OBNWR | Calico Pennant (immature male)

No. 22

No. 23

10 MAY 2017 | HORP | crayfish (underwater)

No. 24

No. 25

No. 26

No. 27

No. 28

No. 29

No. 30

No. 31

No. 32

Editor’s Note: The following location codes are used in some photo captions, shown above.

Copyright © 2018 Walter Sanford. All rights reserved.

Stream Cruiser dragonfly (male)

April 14, 2017

Another Stream Cruiser dragonfly (Didymops transversa) was spotted during a photowalk along Beaver Pond Loop Trail at Accotink Bay Wildlife Refuge, Fairfax County, Virginia USA.

This individual is a male, as indicated by his “indented” hind wings and terminal appendages.

Stream Cruiser dragonflies typically perch at a 45° angle because of their extremely long legs, especially noticeable in the last photo.

For another perspective on the same male, both literally and figuratively, see Stream Cruiser dragonfly by fellow photoblogger Michael Powell.

Copyright © 2017 Walter Sanford. All rights reserved.

Stream Cruiser dragonfly (female)

April 12, 2017

A Stream Cruiser dragonfly (Didymops transversa) was spotted during a photowalk along Beaver Pond Loop Trail at Accotink Bay Wildlife Refuge, Fairfax County, Virginia USA.

This individual is a female, as indicated by her rounded hind wings and terminal appendages. Look closely at the face and head of the dragonfly. Can you see why “ice cream sandwich face” is my nickname for Stream Cruiser?

The female landed long enough for me to shoot four photos before she flew away — not enough time for me to point her out to Michael Powell, a fellow amateur wildlife photographer and blogger who joined me in search of his first Stream Cruiser. Fortunately, Mike and I were able to photograph a male Stream Cruiser later the same afternoon. Look for photos of the male in my next blog post.

Addendum

I cropped the photo into a square format in order to remove a distracting element. Can you tell what I dislike about the original version? I prefer the square format. Which version do you prefer?

Copyright © 2017 Walter Sanford. All rights reserved.

Common Whitetail (teneral female)

April 6, 2017

After a seemingly endless off-season, I’m pleased to report odonate hunting season has begun in Northern Virginia!

05 APR 2017 | ABWR | Common Whitetail (teneral female)

A Common Whitetail dragonfly (Plathemis lydia) was spotted during a photowalk along Beaver Pond Loop Trail at Accotink Bay Wildlife Refuge (ABWR), Fairfax County, Virginia USA. This individual is a teneral female, as indicated by her terminal appendages and the tenuous appearance of her wings.

Copyright © 2017 Walter Sanford. All rights reserved.

Beautiful butterflies can be ugly!

February 9, 2017

Butterflies are beautiful, right? Usually. And they feed on beautiful flowers, right? Not always, as shown below.

An Eastern Tiger Swallowtail butterfly (Papilio glaucus) spotted at Accotink Bay Wildlife Refuge, Fairfax County, Virginia USA. This individual is a male, feeding on scat.

20 MAY 2016 | ABWR | Eastern Tiger Swallowtail (male)

An Eastern Tiger Swallowtail butterfly (Papilio glaucus) was spotted along Great Blue Heron Trail at Accotink Bay Wildlife Refuge (ABWR), Fairfax County, Virginia USA. This individual is a male, feeding on mineral salts in scat (possibly raccoon).

Copyright © 2017 Walter Sanford. All rights reserved.

Bridges

January 20, 2017

As an avid odonate hunter, I photowalk/streamwalk many scenic locations. I’m fond of bridges, especially railroad bridges.

The first photo shows a view of the underside of the new suspension bridge across Accotink Creek at Accotink Bay Wildlife Refuge (ABWR), Fairfax County, Virginia USA.

A scenic view of the underside of the suspension bridge that crosses Accotink Creek at Accotink Bay Wildlife Refuge, Fairfax County, Virginia USA.

07 AUG 2016 | ABWR | new suspension bridge across Accotink Creek

The next photo shows the view looking upstream toward the ruins of a Civil War era railroad bridge that used to cross Pope’s Head Creek at Chapel Road Park, Fairfax County, Virginia USA.

Looking upstream toward the ruins of a Civil War era railroad bridge that used to cross Pope's Head Creek, Chapel Road Park, Fairfax County, Virginia USA.

22 AUG2016 | Chapel Road Park | bridge ruins at Pope’s Head Creek

The last photo shows the view looking downstream toward a modern era railroad bridge across Pope’s Head Creek near Chapel Road Park.

Looking downstream toward modern era railroad bridge that crosses Pope's Head Creek, Chapel Road Park, Fairfax County, Virginia USA.

29 AUG 2016 | Chapel Road Park | railroad bridge at Pope’s Head Creek

Copyright © 2017 Walter Sanford. All rights reserved.

Blue-fronted Dancer damselfly (female)

January 18, 2017

Blue-fronted Dancer damselfly (Argia apicalis) was spotted during a photowalk along Accotink Creek Trail at Accotink Bay Wildlife Refuge (ABWR), Fairfax County, Virginia USA. An old wooden boardwalk is located near the terminus of the trail.

A Blue-fronted Dancer damselfly (Argia apicalis) spotted along Accotink Creek at Accotink Bay Wildlife Refuge, Fairfax County, Virginia USA. This individual is a female.

07 AUG 2016 | ABWR | Blue-fronted Dancer (female andromorph)

This individual is a female andromorph, as indicated by her coloration and terminal appendages. Females have a noticeably thicker abdomen than males.

Female Blue-fronted Dancers are polymorphic: andromorph females are blue like males; heteromorph females are brown. Andromorph females tend to be a lighter shade of blue than males of the same species, and do not feature the same blue coloration as males on abdominal segments eight, nine, and 10 (S8-10).

A Blue-fronted Dancer damselfly (Argia apicalis) spotted along Accotink Creek at Accotink Bay Wildlife Refuge, Fairfax County, Virginia USA. This individual is a female.

07 AUG 2016 | ABWR | Blue-fronted Dancer (female andromorph)

The taxonomic classification of Blue-fronted Dancer is as follows: Order Odonata (Dragonflies and Damselflies); Suborder Zygoptera (Damselflies); Family Coenagrionidae (Narrow-winged Damselflies); Genus Argia (Dancers); Species apicalis.

Related Resources: Excellent digital scans created by Gayle and Jeanelle Strickland. Click on the button labeled “Download file” in order to view full-size version of the graphics.

Editor’s Note: This is the first female Blue-fronted Dancer that I’ve seen/photographed. Thanks to Michael Moore and Ed Lam, members of the Northeast Odonata Facebook group, for verifying my tentative identification. Dr. Michael Moore is an active contributor to the Dragonfly and Damselfly Field Guide and ID App; Ed Lam is author and illustrator of Damselflies of the Northeast.

Copyright © 2017 Walter Sanford. All rights reserved.

The Taming of the Shrew

January 4, 2017

A short-tailed shrew carcass was spotted during a photowalk along the Hike-Bike Trail at Huntley Meadows Park. According to Alonso Abugattas — Natural Resources Manager, Arlington County Parks, Virginia — this individual is probably a Kirtland’s Short-tailed Shrew (Blarina brevicauda kirtlandi).

A short-tailed shrew carcass spotted at Huntley Meadows Park, Fairfax County, Virginia USA. This individual is probably a Kirtland's Short-tailed Shrew (Blarina brevicauda kirtlandi). The flies are probably Common Green Bottle Fly (Lucilia sericata).

01 JUN 2016 | Huntley Meadows Park | short-tailed shrew carcass

The colorful flies are probably Common Green Bottle Fly (Lucilia sericata).

A short-tailed shrew carcass spotted at Huntley Meadows Park, Fairfax County, Virginia USA. This individual is probably a Kirtland's Short-tailed Shrew (Blarina brevicauda kirtlandi). The flies are probably Common Green Bottle Fly (Lucilia sericata).

01 JUN 2016 | Huntley Meadows Park | short-tailed shrew carcass

Another short-tailed shrew carcass was spotted at Accotink Bay Wildlife Refuge, Fairfax County, Virginia USA. This individual is probably a Kirtland’s Short-tailed Shrew too.

A short-tailed shrew carcass spotted at Accotink Bay Wildlife Refuge, Fairfax County, Virginia USA. This individual is probably a Kirtland's Short-tailed Shrew (Blarina brevicauda kirtlandi).

07 AUG 2016 | Accotink Bay Wildlife Refuge | short-tailed shrew carcass

Look closely at the full-size version of the preceding photo. Notice several small insects feeding on the fresh carcass.

Copyright © 2017 Walter Sanford. All rights reserved.


%d bloggers like this: