payday loans

Archive for the 'natural history' Category

You are currently browsing the archives of Three Star Owl – Functional and Sculptural Clay Artwork with a Natural History .

Spot the Bird: horned edition

spotthebirdlogocopyIt’s Spot the Bird without a bird.  No clues, except that it’s all elbows.  Answer below the fold.hiding

 

 

Adult Desert Horned Lizard (Phrynosoma platyrhinos) hiding under a shrub, Joshua Tree National Park (photos A.Shock March 2013)

DHoLiz

Posted by Allison on Mar 27th 2013 | Filed in close in,field trips,natural history,reptiles and amphibians,spot the bird | Comments (1)

The desert pops

Lots of rain, sunshine, and warm temperatures after a tough winter have started the desert’s flower-fueled engines, pumping poppies out of “nowhere” like magicianbartlettvista‘s flowers.

<< View across Bartlett Lake to SB Mountain in the Mazatzal Wilderness area. The bright orange wash just below the high peaks is poppy fields. The bright green on the lower right edge of the image is chartreuse lichen on the “Yellow Cliffs”.

E and I entered the flowery fray on Sunday, in search of blooms. The west side of Bartlett Lake was our destination — we realized we’d never been there in all these years — and it was good.  To those searching solitude, I should explain that the lake itself is potentially off-putting; not its actual self, or setting, or vistas, which are spectacular, but because on weekends speed boats and jet skiswhiteandgold and other motorized etceteræ mix with the sound of the breeze in the saguaro needles, and the blue calm of the water.

>> Roadside mix of orange and less common white Mexican Gold Poppy (Eschsholzia californica ssp. mexicana, see last photo below for portrait of a white poppy)

This early in the season this traffic is bearable since it’s nowhere near the height of the boys-with-toys influx and fossil fuel frenzy which will invade after school’s out and with warmer temps.  But here you’re on the edge of wilderness, not in it.  Fortunately, the shoreside trail we chose to explore was near a non-motorized cove, which meant most of the motorcraft were inaudible on the opposite side of the lake, and the hardy, self-powered paddle-boarders and unexpected numbers of distance swimmers lupenpopsbraving the winter-cold riffles were impossible to object to.

<< More Mexican gold poppy and Coulter’s Lupine (Lupinus sparsiflorus).

The annual bloom seemed near peak, scattered in the granite gravelly bits among tough perennials like Chuparosa, Brittlebush, Pink Fairy Duster, Buckwheat, and Desert Lavender.  The saguaros and other spring-blooming cactus haven’t begun yet here, but the Ocotillo are in leaf, and in a week or two their hot-poker flowers will ignite their branch tips.

New to us was the subtle but spectacular Mentzelia (probably involucrata, Sand Blazing Star), which we missed on the outward bound walk but caught on the back-track — probably because it opened its transluscentsand blazing star cream-colored flowers mid-morning, after we passed them earlier on. >>

Lizards were the only reptiles we encountered — including the largest Tiger Whiptails I’ve ever seen! — and birds were active with spring pursuits.  Most were “the usual suspects”: the locals like Northern Cardinals, Verdin, Rock and Cactus Wren, Common Ravens, an American Kestrel hunting for shoreline grasshoppers from a lake-side snag.  There were some newly-returned breeders, like a Bell’s Vireo emitting its chewy song from within the brush, Black-tailed Gnatcatchers, Ash-throated Flycatcher, and a spectacular male Vermilion Flycatcher performing his rising, stalling, and calling nuptial flight, glowing red like a stoplight against the blue skyshorebird (click here to view an excellent slo-mo video of a male feeding).  There was even a Turkey Vulture doing an impression of a shorebird (photo E.Shock)>>

Chia buds were up and only beginning to open, but the curled necks of purplish Scorpion weed (Phacelia ambigua, below) nodded over the trail in places, as well as Woolly Daisies, two species of Camissonia, Whispering Bells, Fiddleneck, Blue dicks, Gilia, Cream cups, and Desert Marigold.scorpionweed

<< Scorpion weed (photo E.Shock)

About three roundtrip miles of hiking and a trip up the road yielded around twenty species of annuals either in bloom or about to bloom (no doubt more for those with more expertise).

For dessert, below is a close-up of a fully open, satiny white poppy, agitated by both bees and the breeze, dusted with its own pollen.

(All photos by A.Shock, unless noted. Be sure to click on each, in some cases to enlarge, but also because clicked-on images in WordPress generally have better resolution than images embedded in the text.)whitepop

 

Posted by Allison on Mar 25th 2013 | Filed in botany,close in,field trips,natural history | Comments (2)

Sphinx in pinks

spnxpnksIt’s springtime, and under the fluorescent bulb the front porch metamorphoses into a feeding and mating hotspot.  Mantids, huntsmen, sunspiders, cellar spiders, a variety of moths and other jointleggedies and geckos  congregate at this arthropodal equivalent of a savannah watering hole to look for love, snacks, and in the case of the mantids, lovesnacks.

The showy barflies of the moment are the sphinx moths — I believe these are White-lined Sphinxes, Hyles lineata, also known as hummingbird moths — two of whom have been flirting on the front door screen by night and roosting under the eves during the day.  Last night one chose the Cyclamen in a wall pot for its dayroost, and was a patient subject for close-ups in the morning.  (By the way, the outrageous saturation of the pink cyclamen is not artificially boosted — in fact, I had to tone it down a bit because it actually hurt to look at.)

The sphinges hover at flowers like Evening primrose (which aren’t in bloom yet around the yard) and this hovering habit along spnxfacewith their large size (nearly 2 inches long) and feathery-looking body covering give them their nickname of hummingbird moths.  But look at the portrait on the left — they’ve got big nocturnal eyes, which look more owly than hummery to me.

Check out another sphinx moth here, the rustic sphinx whose larvæ feed on Desert willow and tecoma.

(Photos A.Shock, be sure to click to enlarge)

Posted by Allison on Mar 23rd 2013 | Filed in close in,cool bug!,Invertebrata,natural history,yard list | Comments Off on Sphinx in pinks

The Others Who Live in Our House

We have a loose house.

By that I mean that nothing — windows, roof, doors, plumbing — closes tight, seals off, keeps in, or shuts out. Anything. Everything — cold draughts, hot breezes, swirling dust, muddy floodwater, joint-leggedies, fur bodies, helicopter rotor din — it all comes in, then usually goes out again, unless it decides it’s nice enough to stay, or the cats find it.

seedhoard

From many angles, this is not ideal. But it’s never boring. We call it “living close to nature” and try to learn to appreciate having wasps’ nests in the door jambs, rock squirrels in the attic, leaf-cutter bees in the keyholes, Huntsmen and Cellar spiders at the top of the walls, praying mantises on the houseplants, and termites in the kitchen door frame. OK, to be honest, we haven’t yet learned to appreciate termites in the kitchen, although we haven’t evicted their larval selves yet, either. You get used to inroads, after a while.

>> Palo verde seeds of two types (photo A.Shock)

We uncovered the latest inroad yesterday while searching for a bag of sawdust in the garage: someone’s carefully harvested, cleaned, and stored seed hoard. It featured two different kinds of seeds, Blue Palo Verde and Little-leaf Palo Verde, neatly cached with a little fuzzed fiber as a casually engineered plug to keep the treasure from flowing down the fold of a burlap bag. It was nice work: no husks, droppings, or other pollution in sight. But no owner, either. It was probably one of the Other Mice, family Heteromyidæ, a pocket mouse or kangaroo rat (neither is either a rat or a mouse), most likely the former, which we see around the yard. Caches like this are generally stored underground, and in addition to nourishing the gatherers, provide one of the main ways Palo Verde trees propagate: seeds in a rodent’s forgotten subterranean hoard will germinate, just add monsoon rains. But this trove was high and dry, and the seeds would have languished without benefitting the tree.

And maybe not the pocket mouse who stuffed it into our loose garage, either. But we’ll never know — the human need for not sharing living space with chewing organisms (except dogs, for some reason) kicked in and we scooped up the hoard and spirited it away — a full 1/3 of a cup of pretty little hard, brown seedlets, the smallest ones speckled like the beans they are. Their fate is to be determined. I read that you can bake bread with palo verde seeds: like most legumes, they’re very nutritious. After all the rodent’s hard work, it seems like someone should eat them.

Now, does anyone have a recipe for termites?

Posted by Allison on Feb 18th 2013 | Filed in close in,furbearers,natural history,yard list | Comments (2)

Spot the Bird

mawrI’ve entered this as the first Spot the Bird of the new year, but, having set it in the text, I can see that it’s not much of a challenge. So I made the image small — like the bird itself.  That might slow you down. (Once you’ve spotted the bird, however, do click on it to enlarge to see it better, I’ve uploaded a largish file.)

It’s a tiny, jauntily barred Marsh Wren, Cistothorus palustris, rummaging around in the winter cattails at the Needle Rock picnic area on the Rio Verde northeast of Phoenix AZ. As usual with these skulky wrens we heard it before we saw it: it was rattling the dry stems and giving its harsh scold note as it foraged. The wren, a Song Sparrow and two Black Phoebes were taking advantage of an abundance of flies, picking them off the surface of the river where they were swarming right before sunset.

spotthebirdlogocopy

How amazing to see a little organism so dependent on water living its entire life in a dense but narrow strip of cattails within 20 yards of an arid, saguaro-studded thornscrub landscape.

(Photo by E Shock, who somehow managed to capture a very small moving target in fading light!)

Posted by Allison on Feb 16th 2013 | Filed in birds,field trips,natural history,spot the bird | Comments (1)

The Mystery of the One-armed Bandit and other Tales of the Cold War

Just a few days ago, we experienced a rare deep-freeze in the Southwest deserts.  During a normal winter it can get cold in the low desert — not Canada cold, or even Iowa cold, of course — but this was an unusually lengthy and deep cold for our desert, sinking well below freezing for several nights running, and not warming up past the mid-40s during the day. One spot in our yard went below 20F for three nights in a row.  That’s enough to cause trauma and die-back even in hardy native plants.  Birds spend long daylight hours feeding frantically at both natural and human-provided food sources; mammals, too, unless they’re equipped to shelter in cavities, crevices, or caves, or underground like the local reptiles and arthropods.

<< Old-school thermometer hung in a young saguaro in the cold part of our yard

Cold-powered hunger also can make animals “tame” — fearless hummingbirds slurp at feeders as they’re being carried out to the trees, and aloof night-time hunters like owls and coyotes will boldly stretch their workdays into sunlit hours, and onto back porches and front yards.  This boldness can increase success in finding nourishment, but it also increases exposure, which can be risky for animals who rely on not being seen for both safety and effective foraging.  Traveling in California during an extreme coldsnap many years ago, E and I saw three bobcats in a week, because the stealthy nocturnal predators were out in daylight hours hunting sparrows and small mammals themselves made unusually unwary by the desperation of hunger.

But a mitigating feature of desert freezes is how quickly warmth follows cold.  There’s no lengthy spring warm-up. Within a day or two of our arctic chill, daytime temps have already bounced up to the 70s, 10F degrees above the seasonal average.  Expert survivalists don’t waste this advantage: as soon as the sun can warm air and soil again and melt pools and trickles, animals re-appear in search of food.  This morning I spotted a coyote foraging in the neighbors’ front yard in broad daylight. After a cold snap, temperatures may rebound quickly, but cold leaves many animals hungrier than usual, and without whichever of their plant or small-animal food resources that succumbed to the cold. In the days and weeks afterwards, sometimes extraordinary tactics are required for survival.

>> An aloe blossom that survived, and a female Lesser Goldfinch who didn’t (photo A.Shock)

That might explain E‘s sighting of a Stripe-tailed scorpion (Hoffmannius/Væjovis spinigerus) scuttling about on our driveway the other evening at sunset.  We seldom see scorpions moving around in our yard — believe me, I’ve tried, black-light and all.  Sadly, most of our encounters with these efficient nocturnal predators are with drowning victims in the pool.  And NEVER in winter — they seek shelter as soon as the weather gets cold, and don’t reappear until it’s balmy again.  For an exothermic organism, there’s no point in being out and about in the cold, expending energy at a time when their arthropod prey is hibernating, making it hard to recover the calories lost in fruitless hunting.

Yet, here was a striper in our driveway.  Maybe it was forced by the cold to come out to try for a meal to boost its caloric resources so it could survive the rest of its hibernation.  Maybe its lack of left-hand grasping pincer meant it had gone into winter with fewer reserves under its exoskeleton.  What its story is we’ll never know for sure.  But my hunch is that our efforts at salvaging succulents contributed to its untimely emergence.  We had stashed most of E’s tender cactus and succulents in the garage when the temps plunged.  Maybe this guy was wintering in a planter, and tempted by the relatively warm dark of the garage, wandered out trying to steal a march on spring.  E snapped a couple pix for me, and let it go on its way, to whatever resolution it could manage.

Good luck to it in its wanderings to find dinner and a new refuge.  But I wonder what that hunger sharpened coyote was rummaging for so hopefully across the street “after hours” this morning?  Sometimes it’s the late bird that gets the worm.

Posted by Allison on Jan 19th 2013 | Filed in close in,Invertebrata,natural history,oddities,yard list | Comments Off on The Mystery of the One-armed Bandit and other Tales of the Cold War

Happy Halloween!

Halloween Greetings to all, with the assistance of a cobweb-and-leaf “Owl” in a tree hollow!

The spooky holiday is just too tempting an occasion to resist re-posting this delightfully faux fowl I found on a hike in the fall woods of Cape Cod a few years ago. (photo A.Shock)

Posted by Allison on Oct 31st 2012 | Filed in natural history,oddities,owls,unexpected,unnatural history | Comments Off on Happy Halloween!

It was just sitting there…

…so I walked up to it and took its picture.

It’s an immature Costa’s hummingbird sitting on a thorny throne below the deep dark of our Texas Ebony’s canopy.  Imperfectly sharp as it is, it was a lucky shot in the shade — with no flash, trying to hold the telephoto lens still.  There are thirty other perfectly un-sharp images to prove it.

Costa’s hummingbird (photo A.Shock) >>

It did not care in the least that I was stealing its soul with my camera — probably a soul would just weigh a hummer down anyway, and this one had gnats to nab and intruders to chase.  I was happy to catch it in its late afternoon moment of calm.

Posted by Allison on Oct 15th 2012 | Filed in birds,close in,hummingbirds,natural history,yard list | Comments Off on It was just sitting there…

Just a pretty

Here’s some eye-candy to bring in the new month: a Photoshop-edited photo of the Cooper’s hawk (who may have eaten Hoover) I posted about a few days ago >>

Sometimes what begins as a technically sub-standard photographic capture — like this image taken in difficult light through grimy double-paned glass, a bug screen, and security bars — can be salvaged with a little (or a lot!) of editing.  Don’t think of it as photography at all, because that’s only the starting point.  You can argue either way whether it’s art or not, but it is good illustration, because it clearly shows the tough-guy attitude these fierce smallish hawks emit: “Just keep stuffing down there below the feeders, you lot!  I will eat you, fat happy doves….  now or later, you are mine… and I will eat you.”

Posted by Allison on Oct 1st 2012 | Filed in art/clay,birds,close in,natural history,yard list | Comments Off on Just a pretty

« Prev - Next »