Anna’s hummers are capable of setting clutches just about year round in warm climate states like Arizona and California.  The little males have been doing their combo territorial and courtship dives — which culminate in a loud, popping “CHEEP” sound – since December, at least in our neighborhood.  This little Hen in Tucson has gotten a bit of an early start to her reproductive year: here’s a digiscoped shot (acceptable if not perfectly sharp) of her on her fresh nest >>

I was visiting Kate’s house in Tucson on my way back from Wings Over Willcox, when the motion of the tiny busy hen happened to catch my eye as she flew up into her nest with a beakful of some sort of light-colored fibers to add to the construction.  Mature Aleppo pines seem to be a favored nidification tree for Anna’s, where nests are often built on top of the smallish pinecones, as in this case.  I wish her luck, and I hope there’s not too much more winter weather for her to sit tight through!

(Photo A.Shock)

This morning, I found a golden egg, high up in a tree.

Nestled into the rough bark of our backyard mesquite, a magical bird had laid a golden egg.  This was excellent: what a windfall! — my fortune was secured, if only I could reach it.

But it was too far over my head, so I had to satisfy myself with longing for its golden curves through binoculars.

And guess what, it wasn’t an egg at all, but some type of -quat or other: kum-, or perhaps lo-. Yes, that was what it was: a small orange fruit, probably a loquat since a neighbor has a tree, wedged into somewhere safe by a bird, or maybe a squirrel, to be retrieved later.

Who would do such a thing, hiding a golden treasure in plain sight?  The jammer would have to have sufficient strength, beak/jaw gape, toe-grasp, cleverness and agility to handle hauling a small fruit into a tree, and stashing it on a vertical trunk.  There are several candidates, but I strongly suspect the Curve-billed thrashers, who have just fledged their ravenous brood and are working incessantly, combing every crevice in the yard to feed their greedy-gaped offspring.  These industrious foragers will eat anything, seed, suet, bug, or fruit.  And they have an eye for treasure, just as golden as loquats.

(All images A.Shock).

Though the lady bug life cycle has been covered here before, I can’t resist posting this photo of a brand new Lady Bird Beetle and its recently exited pupal casing.

>> the bug and the box it came in. Click to enlarge, it’s a nice big file (photo A.Shock).

Just a couple of days ago, I’d noticed the pupa on an artichoke leaf in the veggie garden. It was practically the first evidence I’d seen of the spring lady bug generation’s progress since finding the eggs on the cilantro earlier this month. Later, I’d only managed to find one active larva, so I was pleased to locate this pupa. Sunday morning I went to show it to E, and there it was — split open now, while its erstwhile occupant, having backed out of the crack in the posterior of the casing, pumped its new flight wings full of hemolymph in the bright morning sun. The unripe-tomato-y quality of the elytra at this stage is perfect, starting out transluscent waxy-yellow and slowly deepening to the familiar cherry-tomato red. The spots appear and darken gradually like darkroom images, gaining contrast and intensity as the carapace dries and hardens.

This time of year the world is pregnant with nests full of eggs, tiny cottontails hopping and hiding in the yard, fledgling birds following their parents food-begging insistently, new yellow-green leaves and catkins on the mesquite trees, and glorious cactus blooms.

<< Praying mantis egg-case on a Palo Verde twig (photo E.Shock). >> close-up of a mesquite catkin (photo A.Shock)

But as this acceleration of generation increases, we see another side of abundance: broken eggs on the ground, young birds not experienced enough to stay out of the street, small mammals learning the hard way about the swimming pool, an adult gopher snake swallowing a tiny cottontail.

Spring is a scavenger’s prime-time. We’ve been watching an Inca Dove carcass decompose under the tangerine tree. In the dry desert, this isn’t a grisly thing: if not enjoyed by raccoons, foxes, or feral cats, the soft parts are quickly consumed by the local scuttling scavengers, usually ants or dermestid beetles and the like. Inca Doves are small, anyway — there’s not much to them, and small bodies don’t have time to bloat, liquefy, or smell very much.

>> Inca dove skeleton (photo A.Shock)

Decomposition is short and if not sweet, at least efficient. What was an intact dove carcass lying in the leaf litter a couple of days ago was, by yesterday, an articulated partial skeleton. The head was gone, but the ribs were still festooned with a few feathers, and the pelvis dangled two femurs and a foot. The ants’ tidy de-fleshing revealed a possible cause of death invisible to us before: egg-binding. Look below the rib-cage under the vertebrae and pelvis, and you can see an intact egg, cracked but still heavy with its contents, in place in the abdominal cavity.

<< Here’s a side-view. The large blade-shaped bone on the right is the little dove’s keel, or breast-bone; the egg sits snugly — perhaps a little too snugly — under the tiny pelvis.

I don’t have my own photo of an Inca Dove — although they’re common in our yard, they’re camera-shy, at least in my experience. But if you need the reassurance of a living image, or more info about Inca Doves, click here, for the Cornell Lab of Ornithology entry on the species.

And just to sweeten the pot because after all it is the holiday season, here’s a photo I posted last spring, of two terribly tiny bunnies snuggled into the form their mother scraped out for them. Go ahead; click to enlarge to see their tiny fluffy details. It was either this or one of the gopher snake eating a baby cottontail, but I think I’ll save that for next Easter.

>> two infant cottontails stashed in a form (photo A.Shock)

To the right is the photo key to the Rock wren of the current Spot the Bird. Rock wrens rock one of my favorite Latin names in the bird world (along with Upupa epops, the hoopoe): Salpinctes obsoletus. According to Choate, the name comes from Greek salpinctes, “a trumpeter” and Latin obsoletus, “indistinct”, referring to its ringing voice and drab plumage. These contradictory traits explain why the little bird is often heard before it’s seen.  Some of you who wrote to tell me you found it said that after not seeing it for a while “it just suddenly popped out of the picture”.  That’s the way it tends to happen in person with these guys, too.

Below is a rock wren up close, singing its song. You can see its long, de-curved bill, useful for probing rocks and crevices for insects and spiders.  It’s also good for carrying and manipulating small rocks: Rock wrens construct a pavement of tiny flat stones and pebbles leading up to their nest, which is concealed in a hole or crack in a rock.  No one (except the wrens) knows why they do this.  (<< photo E.Shock, taken at Fremont Saddle in the Superstition mountains) One thing the beak does not do is take up water: Rock wrens are thought to get all their moisture through their prey, and don’t drink even when water is available.

Speaking of water, E would like me to add that the rocks in the top photo, along Castle Hotsprings Road, are significantly hydrothermally altered.  You know, subjected to intense heat in a moist environment, either at depth, or nearer the surface, as in a hotspring.  I don’t suppose the rock wren cares, except that the hydrothermal process has left the rock cracked and full of holes, which is just what a rock wren likes.  Click here for a tale about another hydrothermally-altered rock that hosted many organisms.