Mission: To promote the appreciation of wildlife and increase harmony between humanity and nature.

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Sunday, January 18, 2015

In Our Reflection

A male common merganser, fishing in Montlake Cut, swims through reflections on the water.

Boats traveling at slow speeds create gentle swells which cause the reflections to shape-shift around the bird.

The constantly curving shapes are so mesmerizing it can be challenging to focus on the bird.

More and more, wild creatures all over the planet are being forced to live in our reflections. In these photos the birds are fishing in a totally manmade waterway, created in 1916. The Cut changed the drainage of Lake Washington and lowered the water level by nearly 10 feet.

If given half a chance nature adapts. The merganser spots potential prey and begins its dive. The relatively long tail pushes down on the water while its feet push the bird up. The neck and the head extend, while the bird remains intently focused.

 The coloring of the female common merganser is clearly different from the male.


The female has a crested, red head instead of the smooth, dark green head of the male. Her body is grey instead of the crisp black and white of the male. Only the females have a white chin.


Both male and female mergansers will often swim with their heads in the sand, so to speak, while they search the depths for the flash of an unfortunate fish.

Their diving maneuver is the same for both genders. Once their sawtoothed bills close on a fish it is over fairly quickly. 

 Here is one more look at a female followed by…



… a male against a similar background. If it wasn't for the similar look of their long, slender bills, with the down-turned tips, one might think they were different species, not just different genders.

The mission of the this blog is to help develop harmony between humanity and nature.

The question is, what can we do as individuals, and as a society, to insure our children have the opportunity to share Union Bay with these wild and wonderful creatures.


The easy answers are keep oil and pesticides out of the water.

We could build rain gardens that keep heavy rain from washing oil off the streets and into the waterways.


More challenging tasks include things like driving less and daylighting local creeks so salmon and other fish can return and reproduce in their normal habitats.


If we could get even a portion of the original salmon runs established, nature's response would be a significant increase in birds like mergansers, grebes, cormorants and eagles.

Speaking of cormorants, even they look more elegant when photographed in our reflections.

While I was watching the mergansers, Elvis came and worked his way among the cottonwoods along the north side of the Cut.

 When mergansers dry their wings, it seems like they are standing upright in the water.


It is almost like they defy gravity. I wonder what they do with their feet and tails, to appear so stationary in the water.


Another similarity between the female and the male mergansers, they both have white patches on their wings.

Although, on closer inspection, even those are not exactly alike.

Earlier in the week, I caught this distant sequence on the Cut. The male in front has just caught a fairly large fish. The second bird is obviously hungry and would love to steal the meal.


Evidently, the fish is so heavy that the lead bird cannot fly with the extra weight. So he is not just paddling with his feet, but also thrashing through the water with his wings, as he races to keep his lunch. The two birds made long curving tracks of froth across the water as they churned around the Cut.

In desperation, no doubt hearing the cries of an approaching gull, the lead bird coordinates the actions of his feet, wings and head.


With feet paddling and wings churning, the bird turns the fish head first in its mouth and swallows it whole, without breaking stride. A living example of, survival of the fittest.

Parting Shots:

 Here are a few more shots of these wonderful creatures that live in our reflections.







Have a great day on Union Bay…where nature lives in the city!

Larry


























Sunday, January 11, 2015

Discriminating Taste

The varied thrush is a quiet and shy bird. They usually fly at the slightest disturbance. The Cornell Lab of Ornithology says they prefer to live in forested areas of at least 40 acres. We are very lucky to have them residing in the Arboretum inside the city of Seattle. Due to the dark grey coloring this bird is most likely a male.


They are supposed to prefer fruit in the winter and insects in the summer.

These December photos show they certainly like the mountain ash berries.


Curiously, it looks like the bird's tongue has a notch on the backside to help push the fruit down the throat.


Here is a second bird, in a similar pose, where the shape of the tongue seems even more obvious.


The females have more of a dull brown color as opposed to the dark grey of the males.


 I wonder how the birds pick which berries to eat. 


This bird goes after the last berry on the branch


…which would seem to imply they will consume every last morsel, but that is not the case.


Less than one hundred feet away sits this tree fully laden with berries. A week or two earlier the varied thrush worked this tree. Surprisingly they abandoned it in favor of the shaded tree, shown in the other photos, which has far fewer berries.


 There must be something particularly appealing about these berries.


Maybe they have a subtle and refined flavor like we might find in a fine wine…


…or an expensive piece of chocolate.


 Being able to fly helps the discriminating thrush find...


 …just the right berries.


(Did you notice the patterns on the wings.

 The patterns from this angle are much lighter.)




 Sometimes a particular berry must seem to "call out" to be eaten.







 Got it!


The thrush does not seem to mind losing the less appealing berries...

 … as long as it gets the one that is "just right".

Cornell says, "Varied Thrushes are fairly common, but their populations declined by 2.2 percent between 1966 and 2010, resulting in a cumulative decline of 62 percent, according to the North American Breeding Bird Survey. " The implication is that retaining mature forested areas is critical for the long-term survival of varied thrush.

Yesterday even though berries were still hanging on the trees the thrush had moved into the more heavily forested portion of the Arboretum and were searching among the leaves for insects. Apparently they do not know that eating insects is supposed to be a summer feeding behavior. On the other hand maybe the bugs just have a very special flavor right know.

 This Bewick's wren, spotted nearby, seems to agree...


 …that insects... 

...taste great!

Parting Shot:
Yesterday, for the first time, I finally caught a glimpse of the red-naped sapsucker. Since it works in the shadows it is very hard to get a decent photo. In this case after just a few moments it flew. Surprisingly, it came directly towards me. (The sapsucker was avoiding a squirrel which bullied its way up for a taste of the sap.) The bird landed on a branch above my head and let loose a cascade of post-processed sap before disappearing from sight. 

Have a great day on Union Bay…where nature lives in the city!

Larry