Showing posts with label White-crowned Sparrow. Show all posts
Showing posts with label White-crowned Sparrow. Show all posts

Friday, November 18, 2022

In Praise of Squirrels - and a Few Birds Too

      Just yesterday I was looking at squirrels gambolling in my backyard, chasing each other, running along branches at breakneck speed and generally creating mayhem among the birds, and it struck me that they are a daily part of my life.
     They are capable of driving me slightly crazy, but I nevertheless have a great deal of respect for them, and at times affection. In those rare moments of hubris when I might feel smart, they quickly disabuse me of that notion, as they thwart my every attempt to keep them off my bird feeders.
     There are three species that are common here and I will deal with them in different posts. Here is my first episode.

Eastern Grey Squirrel (Sciurus carolinensis)

     This is the most common species and the cheekiest of the three.
     In fact, although it is called grey squirrel, there are two colour morphs at this latitude; the "regular" grey -


     - and the black.


     As you may see, they sometimes have a fair amount of red in their pelage.


     Occasionally, an individual has a completely red tail.


     It is a tolerant species, with several adults feeding alongside each other, and sharing the same drey in the winter. 
     Their diet varies with the season, but consists mainly of fruit, berries, seeds; acorns are especially favoured. They also take some insect prey, and I have seen them eating caterpillars. Given the chance they will raid a bird's nest and consume the eggs.
     In turn, they are hunted by a variety of predators including weasels, American Mink (Mustela vison), foxes, coyotes, raccoons and raptorial birds. A squirrel out late may become the prey of Great Horned Owl (Bubo virgianus).
     Like all mammals, Eastern Grey Squirrel  is afflicted by parasites such as fleas, mites and ticks. The larva of the Botfly Warble (family Oestridae) lodges in the groin and is severely debilitating.


     Even though they may do this -


     - at heart, we welcome them anyway.
     I'll go and say "Hello" to them right now. They are sure to be there, waiting expectantly for me to go and fill my feeders, anxious to feast on the spillage. I'll be glad to see them.
      After all they are pretty damn cute!



17 November, 2022
Meanderings.....

     A stray cat, whether feral or visiting from a nearby residence I am not sure, does not auger well for small songbirds as it lies in wait.


     We shoo it away of course but it no doubt returns the moment we have turned our backs. I hope this Northern Cardinal (Cardinalis cardinalis) does not fall victim to the cat.


     Dark-eyed Junco (Junco hyemalis) seems exceptionally abundant this year, both in my backyard and around the countryside.


     It is always a joy to see them. No less so, the ubiquitous Black-capped Chickadee (Poecile atricapillus), a true bringer of joy.


     Winter is tightening its grip on southern Ontario and the trees are already bearing a mantle of snow.


     A male Downy Woodpecker (Dryobates pubescens) busied himself with building up his winter storage.


     A flock of Mallards (Anas platyrynchos), initially far down the river, swam against the current to pay us a visit.



     We saw a Red-bellied Woodpecker (Melanerpes carolinus) taking seed from a feeder at a farm house we passed.


     This species too was concerned with caching food for the winter, and had found a convenient location in the crumbling masonry of the old farmhouse.


     Fertile farmland is at repose for the winter months.


     Red-tailed Hawks (Buteo jamaicensis) are common here in the winter. No doubt this individual was on the hunt for an unwary field mouse or vole, or a squirrel too brash for its own good.


     We could barely turn our heads without seeing a chickadee.


     And where there were chickadees there were juncos.


    

     A female Downy Woodpecker hitched her way up a stump, seed at the ready, looking for for a convenient hiding place.


     White-crowned Sparrows (Zonotrichia leucophrys) have generally moved out of our area by the second half of November.


     Migration patterns are changing all over, however; perhaps this individual is set to spend the winter here. We will check to see if we can find it again when we are next in the area.

Trivia

     A local church has a Wednesday programme featuring a lunch and a guest speaker, and I have made presentations there many times.
     At one such event a fellow stood up, an old-timer I might add, and remarked, "I've always wondered - how do birds actually 'do it'?"
     Perhaps you too have wondered. Wonder no more - I am about to explain! If you are prone to blushing, or even a little prurient, read on anyway; rest assured no one will know you read this!
     Most bird species are not equipped with the kind of apparatus we think of in humans or other animals. Generally they lack external genitalia and both sexes possess a cloaca, which swells to form a cloacal protuberance, the male mounts the female and presses his cloaca against hers, transferring sperm. It is a tricky business, the female has to lift her tail, the male has to slip his tail under hers, all the while perched precariously on her back. There is always the danger of slipping off so the whole deed is accomplished in a matter of seconds. There are exceptions to the duration of the "cloacal kiss" as it is euphemistically termed, but generally it is the very essence of speed and efficiency, It perhaps imparts a whole new light on the expression, "Slam bam, thank you ma'am!"
     As stated most birds do not possess external genitalia but there are exceptions. Many male ducks are equipped with impressive intromittent penises, very long, sometimes corkscrew shaped, and some ratites like ostriches and tinamous, having inserted their long penises, dismount and walk around bobbing their head and displaying their penis.
     Guys have always been prone to bragging, but this takes it to a whole new level!

Sunday, May 16, 2021

Nature During COVID Lockdown

      As the seemingly interminable restrictions on free movement continue, we find ways to enjoy nature, and content ourselves with what we can do rather than bemoaning what we can't. 
     
13 May 2021
Our backyard, Waterloo, ON

     There is habitat, food, water and shelter in our yard and the variety of birds that visit us is adequate testament to this fact.
      White-throated Sparrows (Zonotrichia albicollis) generally put in an appearance spring and fall and this year has been no exception.


     Its kissing cousin, White-crowned Sparrow (Zonotrichia leucophrys) can also be counted on to entertain us, and recently there have been as many as five individuals at a time feeding on the ground.



13 May 2021
Lakeside Park, Kitchener, ON

     This location has become a bit of a favourite for us. It is close by and on a good day when there is an extensive parade of migrants it is a great place to see birds.
     And the variety of plants should not be ignored either. 
     American Black Currant (Ribes americanum) is quite beautiful and is in the full flush of its inflorescence.



     Bitter Wintercress (Barbarea vulgaris) is in the same family (Brassicaceae) as the watercress one buys at the greengrocer, but as far as I know is not widely consumed in the same way, its leaves having a bitter taste.



     Garlic Mustard (Alliaria petiolata) is a plant that can cause the mildest of people to curse, swear, hiss and spit! It was introduced by early European settlers and is highly invasive. It often dominates the understory of native forests, seriously reducing biodiversity.



     Attempts to eradicate it have all failed; the best one can hope for is to keep it at bay.
     Birds are not the only animals with breeding on their agenda and we found this family of Grey Squirrels (Sciurus carolinensis) beyond delightful.


     Soon these youngsters will acquire independence from their parents and will be causing mayhem and mischief in the forest as only squirrels can.
    Eastern Kingbirds (Tyrannus tyrannus) find exposed perches from which to scan for passing insects.....


     ..... and sally forth to snag each morsel that comes in range.


     A small party of Cedar Waxwings (Bombycilla cedrorum) moved through and many cameras were aimed in their direction as this photogenic favourite posed obligingly.


     The black bib on a male House Sparrow (Passer domesticus) is prima facie evidence of fitness, so it would be a reasonable conclusion that this bachelor should have no difficulty attracting female companions.


     A male Red-winged Blackbird (Agelaius phoeniceus) .....


     ..... is quite different from the female of the species.


     We always derive great pleasure from seeing a Grey Catbird (Dumetella carolinensis) and this was Miriam's fist sighting this spring.



14 May 2021
Mill Race Trail, St. Jacobs, ON

     A male Downy Woodpecker (Dryobates pubescens) seemed to be finding juicy grubs of one kind or another on this stump.


     American Red Squirrel (Tamiasciurus hudsonicus) is a diminutive rodent that punches far above its weight, not hesitating to rout the considerably larger American Grey Squirrel if they are disputing over food resources.


     In fact, one could be forgiven for concluding that they just don't like each other, for rarely do their paths cross for even a minute or two before a chase breaks out.
     It is difficult to tell from this picture, but the Midland Painted Turtle (Chrysemys picta marginata) in the picture below was quite tiny, barely attaining 10 cm I would estimate.


     Does one ever tire of a male Northern Cardinal (Cardinalis cardinalis)? 


     I think not!
     Wet swamps and marshes are glowing with Marsh Marigolds (Caltha palustris).


     It evokes memories from childhood when I would pick them and put them in a jam jar of water on the window sill. And in those same wetlands I would catch newts (Family: Salamandridae) which I used to keep in an old ceramic baby bath, into which I had added mud and swamp water, with a few plants from the pond too. That was a long time ago!
     White Trillium (Trillium grandiflorum) is Ontario's floral emblem and I confess to being a huge fan of this flower, which blooms for such a short period each spring.


     Part way along the trail we began to hear the persistent (and loud) noise made by amorous American Toads (Anaxyrus americanus americanus) and it was not long before we came upon the orgy that was underway.


     Males fought vigorously for the chance to mount a female and hang on at all costs. The rites of spring were the driving biological force;  nothing else mattered, the urge to mate and perpetuate the species trumped all else.
     American Toads come in a variety of colours and every variation seemed to be on display.



     Soon it will be quiet again and the toads will have returned to dry land. The brief interlude of unrestrained lust will be over for another year.

15 May 2021
Two Storm-water Management Ponds, Waterloo, ON

     I could hear the liquid notes of a Rose-breasted Grosbeak (Pheucticus ludovicianus) piercing the morning air, as this ardent male sang from a lofty perch.


     To claim that a Common Grackle (Quiscalus quiscula) possesses a song would be to stretch the limits of how one defines song. This male quietly probed the banks of the pond.


     There will be more local news in the next post. A couple of observations yesterday were quite exciting and I will look forward to bringing those to you. Lockdown continues for humans, but for nature the world proceeds as it should. I hope to share it with you.

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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