As I mentioned in my last post, I wasn’t feeling too well. It wasn’t a cold, it was covid. I picked up some home tests and tested positive Sunday, the 17th. Today, I am still testing positive, but I feel a lot better. It was pretty rough for three or four days, followed by gradual improvement. Anyway, ten days later I’m still positive for covid. I don’t expect it to hang on much longer. I have felt OK for the last 4-5 days, good enough to get out for some birding.
The entire Sonoran Desert and many other areas around Arizona got significant rain last weekend. From reports I’ve seen, rain around Ajo and the Organ Pipe Cactus National Monument area varied from 1.5 to 2 inches. It rained enough to generate runoff, Highway Tank is full again.
This morning, I saw this American Kestrel sitting on the road. It let me get quite close, but the sun was not positioned well for photography. At any rate, it seemed like it was eating something, but I couldn’t see any prey.As it turns out, it was eating “grit”. I’ve never seen a raptor do this. It is a common behavior for seed-eating birds, the grit goes into the gizzard and helps to grind and digest the hard seeds they eat. I had to do some digging on the internet to find out what is going on with raptors. The insects and meat raptors consume is partially digested in the crop by strong acids and the indigestible materials are regurgitated as pellets. What they do need is some small stones to help clean the crop, which can get full of fatty tissues from their food and can hinder the function of the organ. Owls do not have a true crop; I don’t know if any owl species ingest grit. One of two Gray Vireos I found this morning. These are the first Gray Vireos I have seen this winter, the winter storm up north must be pushing a few more of them south. Barn Swallows also made an appearance over the last few days. I’ve seen as many as eight at the ponds. This one was flying low over Highway Tank.
It has been a long time since I posted anything, so here goes. I had some good nights for astrophotography. Birding has really slowed down, but I’m still taking photos. The most exciting birds have been a Herring Gull at the ponds, but it didn’t stay long enough for anyone to drive out to see it. And at Highway Tank, during a Cabeza Prieta Natural History Association field trip, we saw three Red Crossbills, a very rare bird for the Sonoran Desert. After three years of not catching a cold, flu or covid, I have now come down with something. I think it is a cold but can’t get tested for covid until tomorrow. At any rate, I don’t feel like doing much today.
Later this week it looks like very good chance for rain, and it is badly needed. Fingers crossed.
One afternoon I looked out and saw this Loggerhead Shrike perched on top of the astronomy mount. It let me get very close. An American Pipit at Highway Tank. One of the three Red Crossills at Highway Tank. A distant photo of all three, two males and a female. After getting a drink they flew south. This is a dark nebula, Sh2-239. It is a star forming region in the Taurus Molecular Cloud. It takes a lot of exposure to capture these dark nebulas but I find them fascinating and worth the effort. I’m not even sure this one has a name, but the dark nebula near the top is shown as B209 in Stellarium. The B stands for Barnard. The galaxy in the upper right is IC 359, which is what I had to use to find this dark nebula. Framing is always difficult because these dark nebulas are nearly invisible until the images are stacked and processed. VdB 14 and 15, reflection nebulas in the constellation Camelopardalis. Both are illuminated by two super giant stars. These are very faint too, took me hours of exposure to get this much. Here’s an easy one. I couldn’t resist it one night, the Horsehead Nebula. Compared to the nebulas above, this one is easy to do. Only about 2 hours of exposure and the processing is very fast. All of these astrophotos were taken with the 500f4 lens.
A few days ago, I stopped at the Ajo sewage ponds and counted all the birds for my eBird checklist. I was leaving when I took one last look and saw a gull that hadn’t been there before. A look through my binos revealed it was a Black-legged Kittiwake, quite a rare bird in Arizona and the first one ever recorded here at Ajo. Needless to say, quite a few birders made the trip out here to see it and it stayed all day, so they all got to see it. The following morning, it was gone.
The star of the show for one day, a Black-legged Kittiwake. This Lincoln’s Sparrow posed nicely for me with a nice background. This was at Highway Tank. A young Oregon Junco at the golf course. Yesterday I saw two Prairie Falcons at Highway Tank, one chasing the other. Later I saw this one perched and it let me get fairly close. A Desert Blond Tarantula that was out on a cool morning. IC 410, popularly called the Tadpole Nebula. It is located in the constellation Auriga, about 12,400 light years out there. I used a new filter, the IDAS NBZ Nebula Booster, to create this image. It is a dual band filter that allows Ha and OII light waves to pass but it filters out moonlight and other light pollution, so I can still do astro on moonlit nights, as least for nebulas. It is not going to work on galaxies. It will only work with the 500f4 lens. In this case, this is the first time I’ve imaged this nebula and was able to really see the “tadpoles”. The Heart Nebula, taken during a night with a bright moon, using the new filter. With this new filter and my new software, I’m seeing a big improvement in nebula photography.
