Photo of the Week

March 7, 2011January 14, 2013

Barrow’s Goldeneye (Photo of the week)

A male Barrow's goldeneye swims through golden water. Canon 800mm f/5.6L IS lens with the EOS-7D. ISO 400. Evaluative metering +2/3: 1/1250 sec. at f/7.1

This week’s photo features a Barrow’s goldeneye. The Barrow’s is similar to the common goldeneye, but, as its counterpart’s name suggests, is less “common”. In fact, only a few are seen in the San Francisco Bay Area each winter, whereas the common goldeneye can number in the thousands (with dozens visible at one time).

While both male species look similar, the Barrow’s goldeneye has several distinguishing features. The two most prominent are an elongated teardrop shaped white area in front of the eye (the common has a smaller circular white patch) and a row of white squares across the base of the wings (which can be seen across the top of the back in the photo above).

When I found this male, I was lucky enough to find a female with him (which I assume made up a breeding pair).

A female Barrow's Goldeneye swims through a narrow water channel in the low light of a late winter afternoon. Canon 800mm f/5.6L IS lens with the EOS-7D. ISO 400. Evaluative metering +2/3: 1/800 sec. at f/7.1

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Female Barrow’s goldeneye look more similar to the female common goldeneye. The biggest difference is a completely yellow bill (as above), compared with a yellow-tipped black bill on the common. Other than that, they look identical (to my eye).

I saw this pair on several occasions, as they frequented the same spot for a couple of weeks at least. On one occasion, I began to worry for the female, because I saw the male swimming with a would-be harem of twelve female common goldeneyes. There were no male commons in sight. These two species have been known to crossbreed, but I’m not sure exactly what was going on in this situation. Perhaps it was because he was the only male of either species around, or perhaps it was just because he is much cooler looking with his bold white square pattern. The next time I saw them however, his lady was back at her top spot, and the other females has moved on to more common mates.

March 1, 2011January 14, 2013

Savannah Sparrow Portrait (Photo of the week)

A savannah sparrow pauses from pecking at seeds to pose for a portrait. Canon 800mm f/5.6L IS lens with the EOS-7D. ISO 400. Evaluative metering +2/3: 1/125 sec. at f/6.3

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I recently found this savannah sparrow out in the open, pecking away at the ground for food. These sparrows are not as common in my area as the prolific white and golden-crowned sparrows. Savannah sparrows actually derive their name from Savannah, Georgia, where they were first classified.

That day, there were dark storm clouds in the sky and the light was very low. Only after taking several shots of this sparrow did I realize that I was still using ISO 400 (my typical starting point for bird photography), which lowered my shutter speed to only 1/125 sec. With an 800 mm lens, that is a bit too slow for comfort (even with a sturdy tripod). Anything slower than 1/250 sec introduces a real risk of camera shake, leading to a blurry photo. It is a true testament to Canon’s 4-stop lens image stabilization that I was able to pull these shots off, and with remarkable sharpness. If I had been paying better attention, I would have bumped my ISO to 800 (even though this would lead to more digital noise in the resulting photo), and thus halved my shutter speed.

February 22, 2011January 14, 2013

Quite A Mouthful (Photo of the week)

The bill of a brown pelican balloons underwater as it scoops the water for fish. Canon 800mm f/5.6L IS lens with the EOS-7D. ISO 400. Evaluative metering +2/3: 1/640 sec. at f/7.1

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This week’s photo features a brown pelican fishing. What impressed me about this photos is just how big the pelican’s throat pouch balloons underwater. Often we just see the head as it comes up full of water (and hopefully fish), but here we can see the bill before any water starts to drain. Brown pelicans often dive for their food, whereas other pelican species prefer to scoop prey just below the surface of the water. Once the bill is above water, it must drain before the pelican can swallow what’s left over. During this time, fish can sometimes be seen jumping out of the throat pouch for freedom. In addition, other birds sometimes take this opportunity to steal fish out of the pelican’s mouth.

February 15, 2011January 14, 2013

Great Egret Perched On Wheel (Photo of the week)

A great egret perches on a wheel of an old pump station. Canon 800mm f/5.6L IS lens with the EOS-7D. ISO 640. Evaluative metering +2/3: 1/1600 sec. at f/8

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I’m a sucker for a photo with a perfect background, and that’s what sets this week’s photo apart for me. I usually try not to include man-made objects in my wildlife photography, but in this case, I thought the old rusty pump wheel juxtaposed against the smooth white feathers of the egret added to this photo. And there’s that background! Smooth green, with just enough abstract shapes to hint at lush vegetation. Yes, I know it’s another egret shot, but why not? After all, they are a pretty photogenic bird.

Because I wanted to make sure that both the egret’s face and its back were in sharp focus, I stopped down to f/8. I knew that the background was far enough away to still render out of focus. As I often do with stationary birds, I used only the center focus point on the egret’s eye, then recomposed while holding the shutter button half way. This ensured that if I didn’t stop down the aperture enough to include both the back and face in focus, at least it would be the eye that had the sharpest focus. If the eye isn’t in focus, the shot goes in the trash.

This photo was taken on a very overcast day, so I didn’t have to worry about the sun angle. The shadows would be soft and even, without bringing in too much contrast. Therefore I positioned myself according to the nicest background I could find. This had the egret facing away from me, so I had to wait until its head came into view, and was at least parallel to the sensor plane, or pointed slightly toward me. No one wants to see a photo of just an egret’s back. I made a noise, prompting the egret to swing its head and neck around to look back over its shoulder. That was it – I knew I had the shot!