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Ground squirrel explosion

A family of california ground squirrels lines up along a curb
A family of california ground squirrels lines up along a curb. Canon 800mm f/5.6L IS lens with the EOS-7D. ISO 1000. Evaluative metering +1/3 stop: 1/250 sec. at f/22

Byxbee Park (one of the local bird spots I visit occasionally) has seen a recent explosion in the california ground squirrel population. While I have always seen plenty of these squirrels running across the trails, or peeking their heads out of the tops of bushes, it has never been in these numbers. When this park was created from an old landfill conversion, small mounds were built to create habitat for these squirrels. I’m not sure what has caused the increase in population, but they have been thriving this fall and winter.

A healthy ground squirrel population is a sign of good things to come for birders (and bird photographers!) First and foremost, there have been an abundance of raptors, more than happy to contribute their part to squirrel population control. This park has always been a good place to see birds of prey in flight, but a high prey count can only help. Secondly, an increase in ground squirrels means an increase in burrows. The burrowing owl will take residence in existing homes (including those of the ground squirrel). While I have not seen any burrowing owls in this area yet, I am hopeful that one or two families might take up residence here. The main deterrent to burrowing owls here is that this park is also a popular dog walking area. Too often I see dog owners ignore all of the signs, and let their dogs roam off-lease, potentially disturbing sensitive habitat. For the burrowing owl, all we can do is wait and see.

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Sleeping Green-winged Teal (Photo of the week)

A green-winged teal sleeps as it floats, its reflection cast in the still water
A green-winged teal sleeps as it floats, its reflection cast in the still water. Canon 800mm f/5.6L IS lens with the EOS-7D. ISO 400. Evaluative metering +1/3 stop: 1/640 sec. at f/5.6

This week’s photo is of a sleeping green-winged teal, as he floated around a local pond along the bay. The green-winged teal is one of the many duck species that winter here, extending the color palette from the ubiquitous mallard. I liked this photo because of its simplicity, and the vivid colors reflected in the water.

Many days I am up at dawn photographing, just for moments like this. Not only is the light warm and slanting in low across the horizon, but water tends to be still and glassy, offering many opportunities for great reflections.

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Big sensors, big fun

Okay, so I like to cheat every once in a while. There are “purists” out there who would shake their head with shame at the image above, and I have to admit, I used to side with them more often then not. But I couldn’t help myself the other day playing around with some of my photos to see how I could create other successful photos just by cropping heavily.

The photo above is a head and shoulder crop of the photo below. My distance to this red-tailed hawk was limited by the height of the pole on which he was perched. I was already in pretty close, with an 800mm lens on a 1.6x crop sensor, giving me a 35mm equivalent focal length of 1280mm. If I’d walked any closer to pole, the angle of inclination would have been too severe, which was not the kind of shot I was going after. The photo was okay, but that pole really bothered me. I much prefer natural scenes without visible “hand-of-man” elements.

A red-tailed hawk perches on a tall pole, looking for prey
A red-tailed hawk perches on a tall pole, looking for prey

So, once I got the photo onto my computer, I decided to start playing with the crop, if only to see what my photo might have looked like if I’d had more lens reach. I was fully expecting a pixelated mess, but to my astonishment, the cropped image wasn’t that bad. I won’t be making a 30×40 inch print of it any time soon, but for small prints and web use, it works. Here, the win definitely goes to the massive 18 megapixel sensor and the amazing amount of detail it can capture. Of course, some credit should go to me for the technique required for the razor sharpness of the image!

There are many new opportunities for photographers to express their creativity as a direct result of improvements in technology. Five years ago, I could not have done what I did above. The image quality of the cropped photo would have been too poor to stand up on its own. It is truly amazing how far the world of digital photography has advanced in recent years. Who knows what the next ten years will bring?

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Juvenile White-crowned Sparrow (Photo of the week)

An immature white-crowned sparrow clings to a stalk
An immature white-crowned sparrow clings to a stalk

This week’s photo was taken recently at a local wetland area at the edge of the bay. White-crowned sparrows are among the more common sparrows in the area, along with song sparrows and house sparrows (though the latter are more likely to frequent the backyard bird feeder than flit around the bay trails). Juveniles are sometimes harder to spot because the crown of the head has yet to turn white, as seen in the photo above. Once this sparrow matures however, they are impossible to mistake.