Showing posts with label Common Milkweed. Show all posts
Showing posts with label Common Milkweed. Show all posts

Saturday, July 07, 2018

Nature in the Summer

     For the second year in a row I have been involved in monitoring an artificial mound designed to encourage Sand Martins (Riparia riparia) to nest there. 



     Unfortunately, this structure has been a complete failure both years. There has not been the slightest interest in it; in fact, I have never even seen a Sand Martin in the vicinity of it. I think there are various reasons why it has not been used and I hope that a serious reevaluation will be made by the Land Trust responsible for it. I will be happy to share my ideas and I hope that if anyone reading this account has experience with a structure like this they will offer any critiques or suggestions they may have.
     I know that in Europe walls with pipes filled with sand have been used successfully and perhaps that is the answer here. Whether a wall has even been tried in North America I have no idea, but I have been unable to find evidence of it. Location is certainly a factor too.
     Butterflies abound in mid summer and there were lots of Northern Pearly-eye (Enodia anthedon) flitting around in the meadows. Fortunately the odd one landed on a desirable piece of vegetation, at least long enough to take a picture.



     A male Baltimore Oriole (Icterus galbula) was singing its head off; I am not quite sure why at this late stage in the breeding season, perhaps in defence of territory.



     After such a strenuous performance a little preening was in order.



     Upon leaving the reserve, as I pulled away in my car, I spotted a large Eastern Garter Snake (Thamnophis sirtalis sirtalis) basking in the middle of the gravel road. I stopped the car and got out gingerly and walked around the vehicle to the back so that the sun would be behind me for a picture. Careful as I might have been, I had obviously spooked the snake and it was slithering away quickly into the grass. I succeeded in getting only one picture before it disappeared from view. At least it was no longer in danger of being run over.



     After lunch Miriam and I decided to go out and check a few local spots, given the fact that the temperature was a pleasant 24 degrees, in sharp contrast with the hot spell we have been having recently, when air temperatures have been soaring to 35 degrees, and with humidity factored in, into the low forties - not pleasant at all.
     A pair of Western Ospreys (Pandion haliaeetus) have nested on a communications tower for the past few years and two birds were on the nest.



     I suspect that these two birds are the young of the year, now as big as their parents and ready to fledge at any time.
     Cedar Waxwings (Bombycilla cedrorum) are common and we were surprised to see only one individual.



     In fact birds were very scarce, perhaps resting during the heat of the day. Turkey Vultures (Cathartes aura) were taking advantage of the thermals and it was rarely that we looked up without seeing a couple soaring overhead.
     It was easier to find butterflies, with Cabbage White (Pieris rapae) being the most common species.



    Clouded Sulphur (Colias philodice) was a close second.


  
     A lone Killdeer (Charadrius vociferus), feeding at the edge of a pond which is rapidly drying up, appeared to be benefitting from the lack of competition.



     We spotted several Eastern Commas (Polygonia comma) but it took a bit of patience to wait for one to land. In fact, no sooner had one landed than a second one joined it.




     Queen Anne's Lace (Daucus carota) is blooming everywhere, and we checked for the caterpillar of the Carrot Seed Moth ((Sitochroa palealis) which uses Queen Anne's Lace as a host plant and we were able to find a few.



     The meadows are a riot of wildflowers at present.



     Lots of Common Milkweed (Asclepias syriaca) was in bloom but try as we might we were unable to locate even one caterpillar of a Monarch (Danaus plexippus), and we have seen only two or three of this enigmatic butterfly this year.



     Japanese Beetle (Popilla japonica) is a serious invasive pest and seems to be quite catholic in its taste. I have lost count of the number of native plants on which I have seen it feeding.



     A couple of other butterflies rounded out our walk. If I am not mistaken this is our first Spring Azure (Celastrina lucia) of the year and it is already July!



     A Northern Crescent (Phyciodes cocyta) was partially hidden in the grasses, but Miriam managed to capture this shot.



     We saw several other interesting species of various taxa during our walk, most without photographs and a couple upon which we are awaiting ID confirmation. 
     It was great to be out and about on a fine summer's day. We will do it many times again before the cool winds of fall nip at our cheeks.

Friday, August 12, 2016

House Wren (Troglodyte familier) and Cedar Waxwing (Jaseur d'Amérique)

10 August 2016
Hullett Marsh, Huron County, ON

     We had planned a visit to Bayfield and left ourselves enough time stop by Hullett Marsh on the way - and it was a couple of hours well spent.
    Many nest boxes have been located throughout the property and this year House Wrens Troglodytes aedon seem to have claimed squatters' rights.


     They are aggressive little birds and able to defend their territories pugnaciously against all comers.  This individual perched atop his nest box and uttered his rollicking song as though to challenge those who might dare to interfere.



     It was curious behaviour in a way, because the bird would enter the nest with food in its bill, obviously feeding young, and then come back out to take up its position on top of the post and sing loudly.
     Perhaps in complete disdain of us it turned its back!


     Cedar Waxwings Bombycilla cedrorum were actively flycatching and had found the rails of an old bridge very convenient perches.



     This is a very handsome species indeed and one that never fails to be appreciated by visitors who have never seen it. It is a year round resident and with a little diligence can be found at any time of the year. It is primarily a frugivorous species and even feeds its young a principally fruit-laden diet, supplemented by a few insects.
     The following picture shows a close-up of the waxy tips on the wings giving the bird its name. I remember my grandmother used to seal the string on parcels to be mailed with sealing wax, looking very much like the bright red wingtips of a Cedar Waxwing.


     From any angle this species is one of our most enigmatic residents.



     Common Milkweed Asclepias syriaca is at the peak of its inflorescence in August and it was seen throughout.



     Milkweed is vital in the life of a Monarch Danaus plexippus and they were present, although in small numbers; this year does not seem to be a good year for Monarchs.
     It always strikes me as amazing when I see butterflies with a large part of their wing(s) missing, yet they still are able to fly proficiently. This Monarch flitted from flower to flower without any problem that we could ascertain, whereas one would think it would be aerodynamically unbalanced.


     Hullett Marsh, in all its seasons, always holds delights in store for a visiting naturalist, and there are many more treasures waiting to be discovered on subsequent visits. We will look  forward to it!

Sunday, July 05, 2015

A Summer Stroll

     A couple of days ago Miriam and I went for a walk at RIM Park. It was a glorious, sunny day, redolent with summer activity, but certainly muted in terms of bird life. These are indeed the dog days of summer when most species have stopped singing, and adults are busy doing everything they need to do to launch their young into the world, and staying as unobtrusive as possible. Many interesting facets of nature are present, however, and for even the casual observer there is much to enjoy.
    This nest of Baltimore Oriole Icturus galbula was no doubt home to a family, and we saw adults busy delivering food to fledged young.



     Common Milkweed Asclepias syriaca was blooming profusely, and the sheer range of insect life it harboured was a forceful reminder of how critical this plant is to many species.




     Here it is with a Virginia Ctenuchid Moth Ctenuche virginea, a diurnal species, feeding on the flower.



     Great Spangled Fritillaries Speyeria cybele were easy to find and milkweed was their choice of plant also.




     The tiny Edward's Hairstreak Satyrium edwardsii always seemed to be cooperative and showed its colours when we wanted to take a photograph. It is joined by a whole group of Virginia Ctenuchid Moths.




     Sensitive Fern Onoclea sensibilis was not hard to find.



     The Tiger Lily, profuse in many habitats, even alongside roads, is in the genus Lilium, but is really hard to pin down as to species. It is a gloriously beautiful plant.




     Red Clover Trifolium pratense was imported from Europe by early settlers as a forage crop and found an environment much to its liking and is now ubiquitous.



     We are first and foremost birders, so it seemed entirely appropriate that right as we left the park we saw a group of juvenile Barn Swallows Hirunodo rustica waiting to be fed by their parents. It is quite incredible how the adults can swoop in at top speed and stuff an insect into the waiting bill of the juvenile without reducing speed. It is a true feat of coordination.




     What a pleasant walk it was. We need to get out and do it again today!

Monday, June 09, 2014

Fairmount-Webwood Passage Nature Reserve

Fairmount-Webwood Passage Nature Reserve
Donor Tour
8 June 2014

    All of the clubs, associations and individuals who donated part of the money needed to acquire this tract of land by The Bruce Trail Conservancy were invited to take part in a tour of the property. The Kitchener-Waterloo Field Naturalists participated in this event and were well represented by several of its members, including Miriam and me.
    This acquisition was deemed to be especially significant as it provides a connecting corridor of rich habitat between the existing reserves known as the Fairmount Wetland and Webwood Falls. Now that there is a direct route between the two, several kilometres of road travel have been eliminated.
    Our two staff ecologists for the day were Brian Popelier and Adam Brylowski and they did a fine job of interpreting the natural riches of the area.

Brian, Adam
    Before embarking on our walk we took a small detour to look at one of the falls from which Webwood Falls takes its name. It was quite beautiful, although the mosquitoes in that area were fierce. We were well prepared with repellent, however, so it didn't bother us too much.




    There were many attractive features of the property which contains a variety of habitat, not the least of which was this swamp, so typical of the area.


    Several species of damselflies and dragonflies were observed, not easy to photograph, however, since we were engaged in an exploratory walk and not able to tarry at length. Nevertheless we were able to get a fairly decent shot of this male Ebony Jewelwing Caloptyeryx maculata.


    Miriam reacts badly to insect bites and she was well buttoned up for protection. This, combined with a liberal application of bug spray on every square centimetre of exposed flesh, served her well for she was not bitten even once.


    There were many beautiful plants and trees including extensive patches of  Tall Buttercup Ranunculus acris.


    Wood Anemone Anemone quinqefolia was prolific and gorgeous.


     The curiously named Ostrich Fern Matteuccia struthiopteris is a native species and was quite prolific in some areas. It was quite wonderful to see it swaying in the gentle breeze, seeming at times to resemble a wave.


    Common Milkweed Asclepias incarnata is critical to the survival of the Monarch Butterfly Danaus plexippus and it was encouraging for all of us to see a few plants in the meadows. Brian recounted that "blowing parties" have been organized when the seed pods are about to burst. Volunteers literally blow the seeds from the pods to disperse them as widely as possible to stimulate farther and more widespread densities of the plant. It bears repeating that this is the only plant on which a Monarch lays its eggs and it depends on the toxins provided by milkweed to bolster its defences.


    The whole area was filled with a wide variety of birds, but it would require more time and some dedicated effort to photograph them. This is not a very good picture of Cedar Waxwings Bombycilla cedrorum but it certainly was great to see them flycatching from the snags in the swamp.


    Part of this land is restored pasture and one of the meadows formerly contained a good deal of invasive Common Buckthorn Rhamnus cathartica. Once it takes hold this is a difficult shrub to remove and it was through the concerted efforts of about thirty volunteers over a two-day period that it was eliminated. It is very pleasing to see the amount of regeneration of native trees taking place, based on entirely natural seed dispersal. In twenty or thirty years this meadow will revert to the kind of forest that existed before European settlement in the area.



    At the end of the walk it was time for Miriam to share the friendship of other members of KWFN who had made the journey north to take part in the celebration of this new reserve. Here she is with the ever irrepressible Marg Macdonald.


    And with Mary Ann Vanden Elzen, one of the true stalwarts of the club.


    Delicious baked goodies were provided and a glass of sparkling apple juice to toast the new reserve and all the donors who made it possible.


    I confess to feeling a great sense of pride and satisfaction that our club, now in its 81st year, was able to contribute to making this day happen.

Land Acknowledgement

We acknowledge that the land on which we are situated are the lands traditionally used by the Haudenosaunee, Anishinaabe, and Neutral People. We also acknowledge the enduring presence and deep traditional knowledge, laws, and philosophies of the Indigenous Peoples with whom we share this land today. We are all treaty people with a responsibility to honour all our relations.

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