Vulture feeds

 

In the last decade, local observations of Turkey Vultures have roughly doubled. Is this a result of changing observer attentiveness, global warming, or just vulture behaviour? Who knows?

For the first half of the decade, the only views I had had of vultures were when they were hunting while soaring. Subsequently, I began to see some perched in trees. However, throughout all that time, I never saw one on the ground, and certainly not feeding. So, when Shirley Smith sent me a picture of a vulture feeding on carrion, and said I could post it, I welcomed the opportunity.

A Turkey Vulture feeds on (what might be) a yellow-bellied marmot beside a road.

Shirley Smith’s picture is used with permission.

 

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Ruby flashes

 

The Ruby-crowned kinglet is a rather small, undistinguished insectivore that can be seen for perhaps a month, two times a year, as it passes through our region. Further, in its search for insects to eat, it forages deep in brush and frenetically moves from branch to branch with a rapidity that makes it difficult to observe. 

Why bother with it? The female, male, and juvenile all look alike — except for when the male gets excited. On those occasions, he displays his otherwise-hidden eponymous ruby crown. That excitement might be the sighting of a potential mate, a rival, a predator, or it seems, the mere need for a scratch.

A male Ruby-crowned Kinglet visited. It did not appear concerned by my attentions, but flitted about so quickly that it allowed scant time for portraits. But, on one occasion, it scratched itself. Ah, then the ruby crown appeared.

The Ruby-crowned Kinglet frenetically foraged for insects, rarely stopping for a portrait.

On one occasion it paused for a scratch and flashed its ruby crown.

 

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Loon returns

 

Following the last posting, Osprey returns, now comes the Loon. As with my osprey observation, there have been a handful of others who have seen or heard loons in the past little while. But, this was my first sighting.

Both birds, Osprey and Loon, winter elsewhere but breed here in the summer. Both are big (the loon is 2 ½ times as heavy as the osprey), have black and white plumage, and are live-fish-eating birds that arrive in the spring and leave in the fall. Yet, people celebrate the osprey, while more-or-less ignoring the loon. 

Folks watch for the osprey’s arrival, they watch their chicks grow and fledge, and name things after them. The loon, not so much. (The coin named after it is a national thing.)

One does wonder why the disparity. 

It might be just a matter of avian marketing. The osprey nests conspicuously on trees and pilings beside the lakeshore in full view of homes and summer cottages. The loon vanishes to nest beside small mountain lakes, well out of view of all but the most intrepid bird watcher. The osprey makes dramatic plunges from on high into the water only to surface and fly off with a fish in its talons; the loon quietly dives for and quickly swallows a fish. 

Despite their other similarities, it seems that the loon lacks the osprey’s really good marketing agent.

A Common Loon arrives at Kootenay Lake.

 

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Osprey returns

 

For a couple of days there have been reports around the Lake of the return of Ospreys. I saw my first one (indeed, three of them) this morning.

A newly arrived female Osprey lands on a branch.

 

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Shrike while hot

 

I have posted a handful of shots of the Northern Shrike in the last month (see, this, in particular). So, why more? This is a case of shrike while the iron is hot.

This peculiar bird is hunting around here briefly before heading north to breed. On previous occasions, I have seen it in Kokanee Creek Park in the grasslands adjacent to the Lake. Alas, on 8th April, the Park was closed (it’s a covid thing). The following day, a shrike appeared at my home. OK, I had to record the event. 

A Northern Shrike perched in a bush outside my bedroom window.

And soon flew off — seen here just entering the camera frame.

 

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Spring butterflies

 

A better indication than the equinox for the arrival of spring is the arrival of butterflies. In the last few days, I have seen two, both early-season species. Each settled on some dry grass and spread its wings so as bask in the sunlight.

The California Tortoiseshell is common some years and rare others. The damaged right, back wing on this one implies that it has been around long enough to have been attacked by a bird.

The Mourning Cloak is so named because its colours mimic a cloak worn during a period of mourning. After a winter in hibernation, Mourning Cloaks emerge early in the spring to mate.

 

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Bird flights

 

The canonical bird picture shows it perched in profile. Such a picture is useful for identification, and is relatively easy to take. When I say this, I don’t mean to imply that a profile is easy — just that it is considerably easier than taking action shots. 

But I like the action shots, and for birds this often means catching them in flight. Here are two shots from this morning.

The male robin on the left was foraging on the grass when it was attacked by another male. I suspect that this was a fight over breeding territory. 

For a few weeks, we have had a Northern Shrike hunting over grasslands. The bird has probably stopped to feed on its way farther north to breed. I have managed a few profile pictures, but until this morning, my flight shots of it were distant and blurry. 

 

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Steam devils in April

 

Steam devils in April? This was unexpected. Although not an every-winter occurrence, my experience is that steam devils are seen over the Lake during a bitterly cold outbreak of brisk winds in midwinter. Yet, there they were on a sunny April morning.

Steam devils are whirlwinds of steam fog extending from the water surface upwards perhaps a hundred metres. They look rather like water spouts, but they are not. Water spouts grow down from a thunderstorm and lift a column of whirling water. Steam devils grow up from the surface and are filled with churning droplets of steam fog. Indeed the name devil comes from the Greek, to throw. Satan earned the name as a result of throwing slander; steam devils earn it by tossing droplets of steam fog.

Today’s events played out as follows: The night was clear and a cold katabatic wind flowed down a draw, out across a beach, and over the warmer water of the Lake. Once over the water, the low-vapour-pressure moisture in the katabatic wind mixed with the higher-vapour-pressure moisture just over the Lake. The resulting condensation produced small chaotic convective sprites of steam fog. That is usually where the matter rests.

Today however, the shallow katabatic wind flowed offshore at an angle to the beach: It moved faster over the smooth water than over the friction-slowing beach. This added a spin to the air, and that vortex became stretched by the rising convective towers of steam fog. The result was towering steam devils.

Sprites of steam fog are seen rising from the Lake. But, one that was spinning has been stretched by convection into a towering steam devil.

Steam devils are further sculpted by the horizontal wind and so bend and twist.

A steam devil can form a dramatic spinning tower of fog.

 

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Red-tailed couple

 

Sometimes one happens upon a really nice scene. Such was the case this morning when, for the first time, I saw a close Red-tailed Hawk couple watching me from a snag. The female is on the left, the male is on the right. I wish them luck.

 

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March goulash

 

This is a collection of images from March, each of which lacked a posting of its own.

Such observations of nature serve as a balm to my own increasing social isolation. These are creatures oblivious to our present angst. After all, nature doesn’t need people; it is people who need nature.

Yellow-bellied Marmots are impervious to issues of social distancing. Interactions just carry on.

A Red-tailed Hawk couple is seen on distant trees. The female (lower left) is 11% longer and so about 35% heavier than the male (upper right). This sexual size difference is typical for red tails.

Earlier, the female Red-tailed Hawk is seen with a small creature sticking out of the side of its bill.

Around here, the Northern Shrike is an uncommon bird of the cold weather. Yet, I see one most often in March and April. These are the shrikes passing through here as they migrate from south to north. Although the shrike is a songbird, it is a wannabe raptor. It has the raptor’s hooked bill, but lacks its grasping claws. 

On adjacent days, I saw a juvenile Bald Eagle. Seen first hunting from the air, and next hunting from a perch, it is likely the same bird.

Is this the same bird as above? The colour here seems browner, but then the lighting is different.

Just as with the shrike, we are experiencing an uptick in sightings of Ring-necked Ducks (male left, female right) as they migrate north past our region. The duck is named for the rather faint ring around the base of its neck.

But, the Barrow’s Goldeneye Duck (female left, male right) will now be declining in number with the passing of the winter.

Here is yet another swan. However, this is the less common Tundra Swan, and it is flapping.

 

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