Factious ospreys

 

Nature is not bucolic. Animals attack one another with tooth, claw, and bill. Other species are seen as either food or competitor — in either case they must be attacked. I have watched animals assault prey. I have seen eagles harass ospreys in an attempt to steal their fish. I have seen ospreys attack herons (who knows why?). Spiders devoir flies. Bears and birds prey on fish. Everything captures and eats those tasty voles. It is just a matter of eat or be eaten. There is nothing personal here, folks: you are merely food.

While I have watched ospreys fight over access to a nest site early in the season, I had not previously seen them fight over a fish. But, that is what two of them were doing on this occasion.

A female osprey flies in with her partially eaten fish.
https://genographic.nationalgeographic.com/results/register

She lands on a branch to eat it further, but is watched by another osprey that covets the fish.
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The chase begins. This is only one scene from a vigorous back and forth between the two of them.
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In the end she triumphs and settles down to consume her fish.
https://genographic.nationalgeographic.com/results/register

 

Posted in birds, fish | 2 Comments

June goulash

 

This is a collection of images from June, none of which has had a posting of its own. Curiously, there are no mammals. Although I saw mammals, none of them produced interesting pictures.

The first shore bird to arrive each year is normally the killdeer, which usually can be seen as early as mid March. Strangely, the first one I saw this year didn’t appear until mid June. 

A just fledged dipper chick sits on a log overlooking the creek. It is still too young to feed itself and desperately wants a parent to come along with some food.

With summer, redstarts have flowed into this region. This is a female.

A male Red-winged Blackbird flies past. 

While a female Red-winged Blackbird prepares to fly. 

The fact that this small creature looks rather like a wasp is a ruse to discourage a bird from eating it. It is actually a harmless little hoverfly collecting pollen from a daisy. 

A Bank Swallow leaves its cavity, having fed its chicks, which are, as yet, not visible.

A male Northern Flicker (red-shafted) flies past. 

A crab spider waits patiently on a daisy for a meal to arrive in the form of a fly or ant. 

A female Common Yellowthroat flits through the brush looking for insects.

The male Common Yellowthroat reveals how the bird was named. 

Meow! 

As does the Common Yellowthroat, the Warbling Vireo searches for insects to eat. 

The Osprey has a blind spot when it comes to property rights. It regularly builds its nest on human-built structures, but then complains bitterly when humans happen to pass by. Its mantra seems to be, if I am here, it is mine. 

 

Posted in birds, bugs | 3 Comments

Wild Turkey presence

 

When I was a child on the shore of Kootenay Lake, there were no Wild Turkeys to be seen.

Returning to the lakeshore in retirement, I was surprised to see a few. Since that time, the proliferation of turkeys is probably satisfying only to coyotes.

Why are they here? Apparently they were introduced in the states of Washington and Idaho as a way to satisfy hunters. Sigh….

A Washington website states: “wild turkeys … were introduced to Washington beginning in the early twentieth century.” These turkeys apparently did not head north. However, an Idaho website tells us that: “Wild turkey populations have taken off in Idaho since Idaho Fish and Game first introduced them in the 1960s.” It is a portion of this plantation that seems to have sought refuge around Kootenay Lake, for a few were apparently seen around Salmo later in that decade. 

However, the purpose of this posting is merely to record a milestone in our history of the Wild Turkey. By an accident of the preservation of ephemera, I have a page from the BC Naturalist from the Spring of 1987 (Vol. 25, No. 1, p. 6) that notes: “West Kootenay Naturalists were excited to find two WILD TURKEYS near Nelson on 27 December.”

This event, over thirty years ago, was an early stage in our turkey infestation, all apparently a consequence of Idaho’s introduction.

 

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Fog drops on web

 

A recent posting showed a few characteristics of fog: fog wave. However, fog offers a far richer variety of features than those I showed there. Here is one more: fog drops that have collected on a spider’s web. 

Similar pictures offered on the web are almost always described as being dew drops on a spider’s web. This is patent nonsense. For dew to condense on an object, there must be a marked temperature difference between that object and the air. The thread of a spider’s web is much too narrow to sustain such a temperature difference. Dew does not form on a web.

However, as a collection net for fog drops drifting past, a spider’s web is superb. While large obstacles distort the movement of the air flowing past them so that the fog drops are merely carried around them, the threads of a spider’s web are so tiny that they intersect and collect the fog drops.

Fog drops collect on a spider’s web.

 

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Osprey nest maintenance

 

There is an osprey nest I have been casually watching. Usually a female is incubating there, but a male attends her. I have been waiting until chicks hatch and are big enough to peek over the edge of the nest.

The chicks are not yet visible, however something interesting occurred. While the female was off the nest, the male flew in with a stick to add to it. One might think that nest renovation would all have been done by this time of the year, but apparently it carries on.

A male osprey adds another stick to the couple’s nest.

 

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Fog wave

 

Rain during the day moistened the air. Clearing at night allowed cold moist air to drain to the valley bottom where by morning a fog had formed.

The fog drifts along the shore and back and forth across the Lake. 

Where the fog drifts through the shoreline trees, sunlight casts crepuscular rays.

My favourite scene, however, is of the fog arching in a giant wave over an obstacle, in much the same manner as water flowing over a rock in a stream.

 

Posted in weather | 4 Comments

Tufted sparrow

 

Watch your surroundings long enough, and something distinctly odd may turn up — in this case a tufted sparrow. 

The bird is obviously a chick. It did not seem capable of flight and merely sat on the edge of a road. Two questions: What kind of bird is it? Why does it have antler-like feathery tufts extending from its head?

There have been really occasional sightings of tufted House Finch chicks, and a juvenile Chipping Sparrow, something my chick might be. However, I can find strikingly little information on such birds.

This tufted sparrow has confused me.

 

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Unrelated cousins

 

We have grosbeaks: similarly looking, heavy-billed, seed- and insect-eating birds that have been lumped together as a group for over three centuries. They are, what is referred to as a form taxon, a group based, not upon their biology, but merely their appearances and behaviours.

In the past week, I have watched two grosbeaks: the Black-headed Grosbeak, which is a cardinal grosbeak, and the Evening Grosbeak, which is a grosbeak finch. These two are only distantly related. When seen in the pictures, they are clearly different, but when spotted in the field, I thought they were the same.

The Black-headed Grosbeak is a seasonal bird that is here in small numbers in the warm months. Its heavy bill is obvious.

Also relatively uncommon, the Evening Grosbeak might be seen at any time of the year.

Here the Evening Grosbeak poses for a contemplative portrait.

 

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Lucy has a new gosling

 

Lucy was hatched at least a decade ago. She is the only local Canada Goose that is a recognizable individual. 

Normally, when we wish to identify an individual animal, we have to mark it with something ranging from a metal band, to an ear tag, or a tracking collar. This is because one individual looks much the same as the next (an exception being the humpback whale which is easily identified as an individual by the markings on the underside of its flukes). 

To our eyes, Canada Geese all look alike (with the males being slightly larger than females). Is the goose that visited today, the same one that visited yesterday, or last year? Who can tell?

However, Lucy is leucistic (thus, her name): some of the black feathers on her crown and nape lack pigment. She has been instantly recognizable as an individual since she was first spotted in 2012, already with a mate. Since then she has been seen a number of times along the West Arm, sometimes with chicks.  This morning, she was seen again along with her mate and a new chick.

Canada Geese are monogamous and can live for a couple of dozen years. Lucy may have a few more broods. 

Lucy (Goosey) is seen along the lakeshore with her mate and gosling.

 

Posted in birds, commentary | 4 Comments

More chicks

 

New life abounds in the spring. Here are three rarely featured species.

Robin
Four robin chicks look out from a nest under a building’s eves. 

One of the chicks seems to be getting more than its fair share of food.

Wild Turkey
A Wild Turkey mommy shelters her six chicks.

The chicks appear and disappear in the grass.

Black-capped Chickadee
The chicks of the Black-capped Chickadee look just like the adults. However, after fledging, the chicks are still being fed by adults. The chick on the right is begging for food.

And the adult responds by feeding it.

 

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