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Archive for the ‘Woodpeckers’ Category

Information is important. With information each of us as individuals, and our society as a whole, can learn about the world. With information, we can all make decisions that make sense. With information, we can all discuss ideas.

Without information none of that is possible. Without information, we are, at best, at the mercy of our current, limited knowledge, and our base instincts. Without information we are, at worst, at the mercy of the limited knowledge and instincts of someone else.

This is why the gag order, and insistence that all reports and data be pre-screened before release to the public, issued by the President to the EPA are so concerning to me, and I think should be so concerning everyone else. This is exactly the kind of action that limits access to, and spread of, information. It will only hamper all of our abilities to operate as rational, critically thinking individuals. It is the kind of action that is put in place to control what we, as citizens, know and when we know it. This is censorship and it has no place in science or a free society.

#thisisnotnormal

pansy-white-blue

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This week I began my summer field season. I am planning weekly excursions up into, and throughout, the Sierra Nevada mountains to find Evening Grosbeaks, my study species. My first day in the field was a modest start. I left West Sacramento at 3:00am and drove up highway CA-49 to the San Francisco State Field Campus just outside of the tiny town of Bassetts, CA. When I arrived, at around 6:00, it was lightly misty and on the cold side. I walked around the field camp a little and heard the forest wake up. It was not long before I heard my first Evening Grosbeak of the day and setup my equipment. As the weather cleared, I got some work done testing how Evening Grosbeaks respond to recordings of various kinds, but there were not that many grosbeaks around. There were a bunch of other birds around that gave me some great looks, including several near collisions. At various points in the morning, I was nearly hit in the head by a Western Tanager, a Red-breasted Sapsucker, a White-headed Woodpecker, and a Mountain Chickadee! I also got to see an Osprey circling high overhead with its breakfast, a moderate sized fish, in its talons. But, since the grosbeaks were not especially cooperative I decided to try a new spot. I continued east on CA-49 to Yuba Pass where I was happy to find more grosbeaks along with a few Red Crossbills, lots of Cassin’s Finches, and several Chipping Sparrows, one of which landed on the side of the road not five feet from me and sang and sang. Delightful! After a while, and grosbeaks only showing up few and far between, I headed back down towards Bassetts where I saw Townsend’s Solitaire, which were a real treat for me, and a very lovely pair of Fox Sparrows. Then, after a brief stop in at the Sierra Skies RV Park in Sierra City, I was homeward bound. Odd as it sounds, the RV park in Sierra City was a great field site for me during my Master’s work. All in all, it was great to get out into the field and shake the dust off my methodology. I only got 5 actual trials, and since I am aiming for 10 each day, that was a bit lower than I would like. But there is a lot of summer ahead, so the work will get done. Next week I am planning on heading to the area around Quincy, CA and Bucks Lake to poke around, and hopefully fine more Evening Grosbeaks who will listen to my recordings and let me know what they think of them!

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It has been 14 years since the first printing of the first edition of David Allen Sibley’s Sibley Guide to Birds. It was a wonderful book and stood out, at least in my mind, as the best guide to come out since Roger Tory Peterson’s guides to eastern and western birds. Now Sibley has produced his second edition, my copy just arrived in the mail yesterday. And this new edition has a lot of changes from he old one.

The first thing that struck me were the colors. This new edition has generally bolder, darker, richer colors than the first edition. This change may serve to highlight plumage characteristics and draw attention to color contrasts, and so may make the guide more user friendly. However, there is always a danger when attempting to improve on reality and the result will be distorting reality. Overall, I really like the richer colors, but I do think that on some of the birds, such as the California Towhee, it may have gone a bit too far.

A second major change is that the families of birds now appear in a very different order. Traditionally, bird guides have been formatted so that they present the groups of birds in an order that follows the evolutionary history of birds. In most guides this has meant that the first groups are the Loons then the Grebes then the Albatross and Petrels. However, with ever more detailed and accurate DNA sequencing abilities, the evolutionary history of birds has been going through several rounds of shake-ups, and Sibley’s second edition reflects the more current understanding of how birds have evolved. Now, the first groups shown are the Ducks and Geese followed by the Gallinacious birds and then the Loons, and the altered order of bird families continues throughout the rest of the book. I really like that the order of bird families has been changed. It means that we all have a better understanding of evolution. I am sure that some people will be annoyed at the new ordering, and may feel a bit disoriented when having to re-learn where to find a particular group of birds, but our knowledge is always changing, and the resources we use should reflect those changes.

A third big change is the addition of 111 rare species. These are species that are generally found on other continents, and that have been recorded a very small number of times in North America. At first, I thought that this would simply clutter up the guide with a bunch of birds that basically no one sees, and that they would distract from the birds that people are generally looking for when they open their bird books. But, on further reflection, I have actually really like having all these new birds. It gives us all a better understanding of, and exposure to, what birds are out there. I think that if we as birders, all have a more global understanding of our favorite taxa, that can lead to nothing but good.

One very minor bone to pick is something that was pointed out to me by the late, great Rich Stallcup. He noticed that the Wrentit had a somewhat worried expression and that this was not really representative of the fierce Wrentit spirit. In the new edition, the Wrentit still looks worried.

So, overall, I really like the new Sibley Guide to Birds a great deal and am looking forward to my next opportunity to use it. If I find a White-crested Elaenia I will now be able to identify it!

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Over the past couple of weeks spring has been becoming ever more evident in central California.  For one, large flocks of American Robins have been showing up.  These are likely groups of Turdus migratorius propinquus, large and pale subspecies, that are migrating from their wintering grounds in central Mexico, through central California on their way to their breeding grounds which could be anywhere from northern California to British Columbia or Montana.  I saw another sign that spring is in the air Tuesday as I was walking across campus.  Near one of the large lecture halls, I heard and saw a male Cooper’s Hawk kekking from the top of a large tree.  This was the first Cooper’s Hawk breeding behavior that I have seen this year, and two day later I saw and heard him again in almost the same spot.  Hopefully he will attract a female and set up a nesting territory here.  It would be a lot of fun to watch.  Another breeding behavior that I have just seen starting is that the male House Finches have stated mate-guarding the females.  I watched one particular male as he followed a female around as she foraged, and repeatedly chased off other males that approached too close to the female.  A final sign from the birds that the seasons are changing was a male Nuttall’s Woodpecker checking out cavities as potential nesting sites.  He was moving through a couple of dead trees in West Sacramento, and stopping at any hole he could find.  he would take a few moments at each to look at the external hole, and then stick his head in to take a look at the interior.  He rejected all the contenders save for one, which he poked his head into, and apparently liked.  He climbed all the way in, and over the next 10 minutes or so that I stayed to watch, he did not come out.  Apparently that was a good spot!  To add to these avian signs of spring is one of my favorite plant signs.  The fruit trees that fill the orchards and line many of the streets in the West Sacramento and Davis areas are all in bloom!  I do love the beauty of trees covered in small white or pink blossoms.

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