Late season orchids, shorebirds, etc

I'll take a short break from all the mothing posts, although be warned...there is more to come! But I haven't abandoned some of the other interesting elements of the season.

Actually while I was out getting ready for an evening with moths recently, I had about a dozen Common Nighthawks swooping back and forth not far away, but generally heading south while presumably hoping for a snack along the way.

 Shorebirds have been fairly predictable so far in the area, and that isn't likely to change too much in the next few weeks, but who knows?

Pectoral Sandpiper

 Lake McLean at Keith McLean Conservation Lands continues to be attractive to shorebirds. Probably the best shorebirds in recent days have been as many as 5 Long-billed Dowitchers. I've only stopped a couple of times and did not catch up with any of that species. But their shorter billed relatives have been there, along with a Stilt Sandpiper or two.

Short-billed---Stilt---Short-billed

 This next photo shows a nice comparison between the larger, stockier and longer billed Short-billed Dowitcher and the smaller, more slender and shorter billed Stilt Sandpiper.

Orchids have a fascination all of their own, but most people don't realize how many native orchids there are in Ontario. Even at Rondeau, there are 18 species of native orchid growing there. One of the most abundant orchids at Rondeau and similar habitats this late in the season is the Great Plains Ladies'-tresses (Spiranthes magnicamporum). It is fairly large for a Spiranthes, with fairly large flowers which smell a bit like vanilla to some, or a bit like hot plastic to others. Most Spiranthes don't have any fragrance at all, but this species does. I measured an individual at Rondeau the other day, and even though it was not completely in full flower it measured just over 40 cm tall (16").

The rows of individual flowers may be fairly straight, as in this next photo....

 ...or they may be somewhat spiralling, as in this next one.

 Regardless, the individual flowers have a fairly long lower lip, with slightly yellowish centres.

Recently I went out to a spot with a couple of friends, to look at another, smaller, Spiranthes. It is quite rare in Ontario. It is Yellow Ladies-tresses (Spiranthes ochroleuca). The individual flowers are shorter and more hump backed than the previous species, and their lip isn't quite as long, although it, too, has a slightly yellowish centre.

While we were out looking at this Spiranthes, we came across a peculiar growth form of another, and not just of one individual, but of at least 14 individuals in a scattered group.

We initially thought it might be a different species altogether such as one of the really rare, small flowered ones. However after sending the photos to a Spiranthes specialist at the New York Botanical Garden, who did his Ph. D. on revising the Spiranthes cernua group, the explanation goes something like this: at some point in ancient history, a subspecies of Spiranthes cernua hybridized with Spiranthes magnicamporum somewhere in the Great Lakes region. As a result, the progeny of that hybrid is often apomictic, which means it doesn't need to cross-pollinate but can produce viable seeds through self-pollination. The result is that such small, closed flowers are not all that uncommon, and since it continues to produce viable seed through self-pollination, the entire group of 14 or so that we saw is of this growth form. This species has been named Spiranthes incurva.

Another fairly uncommon orchid is this next one: Autumn Coralroot (Corallorhiza odontorhiza). It is small, barely 15 cm tall, and the flowers often droop or don't even open, so this is about as showy as it gets. It used to be considered quite rare in Ontario, but that is mainly because it is so hard to find, even when you know where it is. It typically occurs in forested areas, so the dappled light on the forest floor makes it even more difficult to see.

I was recently out at a high quality savanna in Lambton County, where one of the only three known populations in Canada of White Prairie Gentian occurs.

 Many readers are likely familiar with the Closed or Bottle Gentian, shown next.

 On occasion, a white colour form of Bottle Gentian occurs, which can really get one's attention, hoping for it to be the endangered White Prairie Gentian. However even though this white colour form of Bottle Gentian is uncommon, an easy way to tell the difference is that Bottle Gentian has little fringes at the tip of its petals whereas White Prairie Gentian is not fringed. What makes things a bit more challenging is that both species occur at one of the 3 sites of White Prairie Gentian, leading to some interesting hybrid colour forms, so checking the flower tips is critical to determine which species it really is.

There is, however, a species of blue gentian with very obvious fringes, as shown below. This is called, appropriately, Fringed Gentian. While I photographed this individual on a cloudy day, the petals weren't as open as they would be on a bright sunny day.

On one of the sunnier days I was out at Rondeau, I decided to look along the east beach for some regular, but seldom seen, occupants. It is the Hairy-necked Tiger Beetle. They were really quite common, but only if you were looking intently. I saw perhaps three dozen of them in less than 30 minutes, but they are difficult to approach, and you don't really see the hairy neck without close focusing binoculars, or a good telephoto camera lens and then look at them on the computer. If you click on this image, it should show up larger if you want to see them.

There are some late season wildflowers that are good for attracting late season butterflies and other things. New England Aster is popular, as are other aster and goldenrod species.

Blue-stemmed Goldenrod

 While photographing some butterflies at this patch of asters, I noticed something else. It was a moth, a day-flying one known as Corn Earworm. That is my token moth photo for this blog :-).

Viceroy

Painted Lady

 There are still quite a few Monarchs around, but diminishing as the days go by. I do have one in a chrysalis in my yard, but it is getting darker and will emerge in the next day or so.

 There is the occasional Peck's Skipper still around. I also saw a Common Buckeye a couple of days ago but since I only had my macro lens on the camera, was not able to get a photo of it.

 Goldenrods, if they are still in good flower, can be quite busy with insects. Wasps especially are searching out nectar. This final photo shows a wasp look-alike but is actually a long-horned beetle type known as a Locust Borer.