Rondeau Butterfly Count

Just a brief note regarding Life on a Sandspit: it seems to have garnered a lot of interest and is doing well.

It is currently available at the Friends of Rondeau store (inside the Rondeau Visitor Centre), as well as the Bayview Market, just outside the Rondeau PP gates. It is also available via the Sydenham Field Naturalists, and you can see it, along with other nature publications on their web site here. I am slowly finding other local sites where it may be available, and will provide updates on those as they occur.

On to the butterfly count post.

Just a few days ago, on July 9, was the annual butterfly count, for the Rondeau area. Over the past 22 years, it has ranged from 35 to 47 species, averaging about 41 species. I don't have the final tally for this year, but based on the area that I and my colleagues did for this one, I think we will definitely be below average both for total species and individuals. I usually get about 18 species, but this year I got only 15. Of course weather is always a factor, and the cool, cloudy, misty weather this year did not bode well. And a downpour of heavy precipitation in the afternoon for some, did not help at all. Nonetheless, it can always be worthwhile to get out and see what is around. The following photos are ones I took while meandering through the several spots I normally cover. I didn't get photos of all the species I recorded, and the results vary.

This first one is the only swallowtail species I encountered, and just one individual!

Black Swallowtail

Bronze Coppers, next, are not a guarantee, and I only saw this one. Fortunately it cooperated to get the kind of photos that allowed me to separate it from the American Copper.

If this count was taken a few years ago, I would have no problem identifying this next one as a Summer Azure. However the lepidopterist taxonomists have examined the Celastrina genus a little differently, and it apparently is not quite so easy, so this one could be as Summer Azure, but I left it as Celastrina sp.

Common Wood-nymph

Eastern Comma

Eastern-tailed Blue

Little Wood-satyr

Monarchs, shown next, got off to a slow start in the count, but as the day wore on, I came across several areas where Common Milkweed was present in the hundreds of plants. One area could have even had more than a thousand plants, so getting several dozen Monarchs was not hard. If I had been able to carefully survey this largest milkweed site, I could have easily doubled the number of Monarchs, but by that time I was losing energy so I did most of my surveying via scanning the large field with binoculars.

Crescent butterflies are normally fairly common, but for some reason, that wasn't the case on this day. I had just this one Northern Crescent.

Although the ? on this next butterfly isn't all that visible, it was indeed a Question Mark.

Red Admirals, at 57 individuals, were by far the most common of the butterflies, other than Cabbage Whites at about 70.

Of course anytime one is out in such habitat, there are always other things to see, so I took advantage of the photo ops I was given. This Eastern Gartersnake was quietly sitting along the edge of one of the first trails I took. I presume it was trying to soak up some of the non-existent sunshine, as it never moved even a bit, although I got quite close.

Along the Erieau Marsh Trail there were the usual things like Great Blue Heron.....

...and even a Trumpeter Swan.

Song Sparrows were common in most areas.....

...as were Red-winged Blackbirds.

Along one area, which follows an old Railway Track, I saw three Wild Turkeys, but true to their character, did not allow me to get very close. This next photo is highly cropped.

Along this same part of the area I covered, I noted several clusters of a Species At Risk, known as Prairie Rose.

And I even saw the occasional day-flying moth that enabled me to shoot it: the Eight-spotted Forester.

Once all the results are tabulated, I will update the results for this count, but as far as I can tell in talking with several other counters, it will not be one of the better ones. Every year is different! Update: there was a total of 1777 individuals of 36 species recorded on this day, so definitely on the low end of average.

 

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Some prairie inhabitants of mid-summer

Although local butterfly counts seem to be over for the season, it is always nice to get out and explore areas for them to see what is still around. I've been out in a few places, concentrating for the most part in areas where tallgrass prairie has been planted in the last decade or so.

Many of the sites I've visited don't have a lot of prairie grasses, but lots of forbs (wildflowers) which are attractive although in a healthy prairie, should make up only about 30%-40% of the total vegetation, not the 75-80% it seems that most newly planted prairies are made up of. There is a whole topic for a future post on prairie ecology there, to be sure, but that isn't the intent of this post....maybe a future one.

At this time of year, some of the most showy prairie wildflowers are:

Prairie Milkweed

Butterflyweed

Ohio Spiderwort

Compass Plant

Gray-headed Coneflower

Mountain-mint

Some of these plants are more preferred as nectaring plants than others. But they are all part of the prairie vegetation, and are great to see.

Most of the butterflies I was able to track down are not specific to prairies but were certainly enjoying what the prairie wildflowers had to offer. This Painted Lady was visiting a clump of Mountain-mint.

 Another Painted Lady was enjoying the presumably tasty nectar of Black-eyed Susan.

 Monarchs, of course, are probably the best known butterfly. This female was resting on a Gray-headed Coneflower

 This Clouded Sulphur, with its vibrant pink edging, was sipping from a False Oxeye.

Common Wood-Nymphs are common to some degree, but they are most often seen flitting briskly over and through the vegetation. When they do land for a short time, they are often partially obscured and challenging to photograph.

Delaware Skippers seem to be fairly common in several places

 Eastern Tailed Blues are common, but not always easy to photograph.

 Sometimes it helps if they are distracted by something else.

 Viceroys are not plentiful, but are seen occasionally right now.

A butterfly I don't see often is this next one: Common Sootywing. Being as small (about 21-27mm or about one inch) and as skittish as it is, it isn't often seen by anyone I expect. I only managed to get a couple of distant shots, and this one is greatly cropped.

While it isn't a prairie site, the Reid Conservation Area north of Wallaceburg is a great spot for butterflies. I managed to catch up to a few Banded Hairstreaks earlier, but missed the Oak Hairstreak the site is known for. Apparently it wasn't a good year for the Oaks. Just yesterday I stopped by again, and saw several species, including Great Spangled Fritillary, Eastern Comma and a Least Skipper, among others.

Least Skipper

I had been hoping for a Duke's Skipper, and am quite sure I saw one, albeit briefly. However the evenly dark upper wing surface and the dark under surface with the telltale wide pale band going the length of the hindwing were fairly convincing. When photographing skippers up close, one has to move slowly. Unfortunately on this occasion, I either didn't move slowly enough and spooked the little rascal or I didn't move fast enough since just as I was focusing on it, it decided to skedaddle, and in spite of searching for it, did not see it again.

There are always lots of other things to be on the lookout for, especially when there is a lull in butterfly action. On some occasions I have seen lots more dragonflies than butterflies. It has been a good year for both of these next two species.

Eastern Pondhawk

Halloween Pennant

Pennant pair in wheel

This next one is attractive as well but not nearly as common as the previous ones.

Calico Pennant

 There are lots of moths to be found in prairies. One usually encounters them as they scurry away and hide, after being spooked when one is walking through the vegetation. The critter in this next photo is a Hummingbird Clearwing, a member of the Sphinx moth group, and can be seen flying in broad daylight. This one is sipping on Wild Bergamot.

Just to add a little more diversity to this post, I will include a photo of a Green Frog, one of the more common frog species of southern Ontario. I found several cooling off in a puddle near a prairie.

And what would a hike in the vicinity of prairies and wetlands be without a photo of a snake. This photo is of a medium sized adult Eastern Fox Snake, an endangered species in Ontario. It was quite approachable, and a close look may explain why. Note the eye on the left side of the critter. It is whitish, which means it is getting ready to shed. The outermost layer of skin, which is about to be shed, includes the covering of the eye, so at this point the eyes are cloudy and the snake has very poor eyesight. Also take a look at the right hands side of the snake's mouth and notice that it looks slightly askew.

 A closer look at this right hand side of the snake's head shows, in this next photo, that it has been damaged, and there is no eye at all! Clearly this snake has had a serious injury at some point, but it has healed over and the snake has survived. Fortunately for the snake, they have a keen sense of smell, so in spite of the poor eyesight, it can still find some food. However this individual has had more than its share of challenges to survive.