Showing posts with label Damselflies. Show all posts
Showing posts with label Damselflies. Show all posts

Tuesday, June 3, 2014

More Spring Birding in Hampton Roads


Spring bird migration in Virginia is now over, so it’s likely that any birds you see for the next couple of months are breeding birds that will be here all summer. Right now is the best time to go out and look for these birds; the weather is still cooler on most days, insects are not as numerous or voracious as they will be soon, and many birds are still singing to attract mates or claim breeding territories, making them easier to find.  Additionally, most birds are still in fresh breeding plumage and are at their most stunning; as the summer wears on their feathers will wear down and their colors become duller.

I went on two particularly productive birding field trips in the latter half of May, to Mackay Island N.W.R. near Knott’s Island, N.C., and to Paradise Creek Nature Park in Portsmouth. The photo at the top of this posting is of an adult male Common Yellowthroat I saw at Mackay Island. Yellowthroats are a type of warbler that is common in Virginia, and you will hear them at almost any wet or marshy area. They are usually hidden away in the reeds or grasses, but if you’re lucky one might pop out into the open to check you out.

Most of the habitat at Mackay Island is wetlands and freshwater marshes, which are actively managed for waterfowl, shorebirds, rails, and wading birds like herons, egrets, ibis and the like. Below are photos of some of these birds that I took when I went to Mackay on May 15:

This Glossy Ibis is coming in for a landing at the wetlands near the Visitors Center. 
The photo below is of the same bird, feeding.



Greater Yellowlegs

Little Blue Heron

Mackay also has fields and eastern pine hardwoods forests, which attract songbirds like Orchard Orioles, Great-crested Flycatchers, Indigo Buntings, Blue Grosbeaks, Summer Tanagers and many other species. Below is my photo of one of the common summer residents, the magnificent Eastern Kingbird:


The visitor center at Mackay has wetlands and ponds that attract several species of swallows including Purple Martins and Tree Swallows (below). It’s hard to tell whether these swallows are fighting or flirting:


Paradise Creek Nature Park in Portsmouth is a very new park that provides a sliver of good bird habitat in the middle of an older suburban neighborhood and an industrial area near the Jordan Bridge. A sliver is enough, though, to attract some beautiful birds. Here are some that I saw there last Saturday:

The Blue Grosbeak is a common summer resident in Virginia. It likes open, weedy fields. 

This is the same species as the bird pictured at the top of this posting, a Common Yellowthroat. This first-spring male is not yet in its full adult plumage.

One of everyone's favorite birds is the stunning Indigo Bunting

As bird activity starts to wane after spring migration, insect activity increases. I realize that more people are interested in birds and bird photos than they are in dragonflies, damselflies and butterflies, but I get very excited about finding and photographing them. Many of my field trips for the next few months will be centered on finding dragonflies and damselflies in particular. My next blog post will go into some detail about some of our local species, but in the meantime, let me give you a taste of the diversity in the patterns and colors of some of our damselflies; they are truly one of the jewels of the insect world!

Immature female Citrine Forktail 

Southern Spreadwing

 Male Blue-tipped Dancer. The female, below, looks nothing like the male.



Two pair of Orange Bluets in tandem. The male clasps onto the back of the female's head prior to mating.





Monday, August 5, 2013

Some Virginia Damselflies


Those of you who read my blog with any regularity know that I’m all about birds, butterflies, dragonflies, and any living creatures that I stumble upon when I’m out exploring nature.  A big part of the experience for me is getting a decent photo of as many different species as I can; it’s gotten to the point where I almost feel like I haven’t seen a critter if I haven’t taken its photo! And in the case of smaller critters, a photograph sometimes becomes essential for the identification process. Damselflies, for instance…

In the last couple of years I have taken a keener interest in damselflies, and have learned so much about them; their life cycles, their field marks, and the surprising number of species that we have in Virginia. I’m constantly trying to learn where to go to find the different species, but this is an ongoing process and I’m still pretty much a beginner. Some damselflies are large enough that they can be seen and identified with the naked eye, but many are so small or so similar to other damselfly species that a photograph is needed to figure out what kind they are.

There are three very general families of damselflies: Broad-winged, Spread-winged, and Pond Damselflies. Broad-winged damselfly species are the largest and most conspicuous of the three families. Almost everyone who has been outdoors has at one time noticed the gorgeous Ebony Jewelwing flying lazily around vegetated edges of shallow waters; it is probably the most common of the Broad-winged Damselflies in our area (photo below). It’s easy to see at the Chesapeake Arboretum at the trailhead in summer.The male has a bright green, iridescent body that reflects different hues in different lights, and opaque black wings.  Another fairly common Broad-winged damselfly in Virginia is the American Rubyspot, one of my favorites. The photo at the top of this blog entry is the male of that species.


The second family of damselflies is the Spreadwings. True to their name, they spread their wings when at rest, rather than holding them over their bodies like the other damselfly families do. I haven’t seen as many Spreadwings as I have the other kinds, but here are photos of two of the species I have seen:

 Slender Spreadwing

Swamp Spreadwing

Pond Damselflies are by far the largest family of damselflies, and they can be further broken down into subfamilies; the “Dancers” are the largest, the “Bluets” are of average damselfly size and are the most numerous (and usually have blue and black field marks), and the “Forktails” are the tiniest  of the damselflies.

Here are some of the "Dancers" you can find in the Hampton Roads area:

Damselflies come in many bright colors, and this male Variable Dancer is one of the most stunning.

 The Blue-fronted Dancer is one of the most common in our region. 

It's easy to spot a Blue-tipped Dancer when it is flying, because that 
bright blue tip on its abdomen is conspicuous as it moves around.

The "Bluets" might be my favorite of the damselflies because there are so many kinds, and identifying them is such a challenge, which I like! Most of them (but not all) have various combinations of black and blues, with minor differences that distinguish them from each other. Here are some examples:

This is not a very good photo, but it illustrates my point. Both of these damselflies are Bluets, but you can easily tell that they are different species if you look closely at their field marks. The one on top is a
 Double-striped Bluet, and the bottom one is a Skimming Bluet.

This one is called an Aurora Damsel. Most bluets have black stripes somewhere along the sides of their thorax, but the Aurora shows solid blue, which helps to identify it.

The Familiar Bluet (above) is probably the most common and widespread damselfly in North America. If you compare this individual to the other bluets, above, you can see differences in the spacing of the blue and black markings on the abdomen, which is a good field mark to use to start the identification process. 

This Turquoise Bluet has no blue markings at all on its abdomen.

The Azure Bluet, above, also has no blue stripes on most of its abdomen, but you can use other small field marks to distinguish it from the Turquoise Bluet and other species; damselfly enthusiasts look at the size and shape of the eyespots, the width of the black stripe on the side of the thorax, the pattern on the abdomen, and the amount of blue at the end of the abdomen, among other things. I know, we're nuts....

Let's look at a few Forktails. These are the smallest of the damselflies and can be very hard to find even when they're out in the open. The Citrine Forktail (photo below) is smaller than a straight pin! To take this photo, I had to sit down in the grass with my macro lens and go through all kinds of contortions that my body wasn't used to -- and I got chigger bites to boot.


The male Rambur's Forktail, below, is one of the more common and widespread Forktails. It's larger than the Citrine, but it's still easy to miss. What usually gets my attention is seeing the two brightly colored parts (the thorax and blue at the end of the abdomen) moving in tandem; the darker parts of the abdomen are harder to see at first, so the bright parts look disconnected.


The tiny Fragile Forktail is also very common here. Below are pictures of the adult male, an adult female, and an immature female. As if damselfly identification isn't hard enough, the sexes and ages of each species are often completely different, as illustrated here: 

Adult male Fragile Forktail. The easiest field mark to look for in the male is the green
 "exclamation point" on the thorax.

Adult female Fragile Forktail

Immature female Fragile Forktail. Note that she has the same bright  "exclamation point" 
on her thorax as the male. Soon her colors will change and she'll look like the adult female 
in the previous photo. If you look very carefully at the adult, you do see a very faded exclamation point on her thorax.

Last, I want to show you one of my favorites, the Duckweed Firetail. This species is found only in ponds where there is Duckweed, and I found a nice little pond at the Dismal Swamp that had several. The Firetail is surprisingly difficult to find despite its outrageous, bright coloration, because of its small size:


I hope you've enjoyed learning a little bit about damselfly identification; I have become thoroughly hooked on these colorful little gems. Next time I'll introduce you to a few Virginia dragonflies. As always, please feel free to contact me at 757-410-7147 if you have any questions, observations, or insights!