Archive for the 'nidification' Category

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Heretofore missing eggs

Last fall our herb garden hosted a successful crop of parsley, cilantro, and Lady bird beetles (AKA Lady bugs).  But we only noticed the bounty of bugs when we found roving hordes of hungry beetle larvæ voraciously devouring hapless aphids.  Pictures of the process of larval metamorphosis were captured  and posted here, but all the eggs had already hatched, leaving the beginning of the adventure undocumented. Now the cycle has begun again, and happily this time we caught it from the start.

>>Here are lovely saffron-colored lady bug eggs on our bolting parsley, awaiting transition into fearsome predatory eating machines. (Thanks to E for the photo.)

We’ll have to be careful when we harvest for tabbouleh!

Posted by Allison on Apr 8th 2011 | Filed in Invertebrata, close in, cool bug!, increments, natural history, nidification, yard list | Comments (0)

A Little the worse for wear

They don’t all make it.  E found a dead fledgling hummingbird in the path across the wash, under the palo verde tree. It was dried, mummified, an inoffensive inanimate thing, not even worth the ants picking over.  We buried it under a nearby chuparosa, a favored food of hummers.  (Photos E.Shock)

Top: detail of foot, with primary feathers behind.

Middle: detail of rump feathers and tail feathers, showing juvenile buffy-edged plumage with a hint of metallic green.  The green deck feathers (middle tail feathers) are just growing in.

Bottom: whole little corpse, with partly-grown baby-beak.

Posted by Allison on Mar 29th 2011 | Filed in birds, close in, doom and gloom, hummingbirds, natural history, nidification, yard list | Comments (2)

Hen Triumphant!

We’ve been watching a hummingbird Hen — we think she’s an Anna’s (Calypte anna) — on a nest since the middle of February.  Lots of people have passed close to her chosen spot, which was fairly low in a crooked Aleppo pine in our backyard, right over a gravel path through the side of the garden.  There was a big wind storm, and chilly late-winter temperatures.

>> Hummingbird nestling (photo A.Shock; click to embiggen)

But the Hen kept sitting, and we finally saw the results of her diligence: one slightly fluffy, fairly well-grown chick peering out over the edge of the small cup-like nest (see photo above).  There’s going to be one more influx of people in the next couple of days to try its courage.  But at least the weather is warm now, and many more flowers are blooming, including some recovered chuparosa flowers, so when the new little bird fledges, there should be lots of nectar and gnats to learn on.

And, for those who follow this blog regularly, I believe I forgot to mention here the last appearance of the unusual (for Phoenix) male Broad-billed hummingbird in our yard last month.  He stuck around until the 16th of February, and we haven’t seen him since.

In other hummingbird news around the yard, yesterday, March 14, we saw our first-of-season Black-chinned hummingbird (Archilochus alexandri) at one of the feeders.

<< Black-chinned hummingbird magnet (Three Star Owl/A.Shock)

Or rather, saw and heard: the males’ wings produce a whirring zizzz in flight: usually we hear them in the yard before we see them.  These hummers are slender, and the males have a black head which shows a purple swash at the bottom edge along their neck, but only if the light is just right.


Posted by Allison on Mar 15th 2011 | Filed in birds, close in, hummingbirds, increments, natural history, nidification, yard list | Comments (2)

Oh say can you KIK…

…by the dawnzerly light?

<< Here’s one of the local Cooper’s hawks preening in the pre-dawn light above my tent “office”.  Every morning at EXACTLY 5:48 by the alarm clock, the pair begins their day by skrekking KIK a couple of solo kiks, then rolling out a long stream of duo kik kik kik kik kik kik kiks.  But the crows are up a few minutes earlier, also clacking and giving their hollow caws. (Side note: crow is okay, but raven is better, if you’re lucky enough to live where it live.  I missed raven when we lived in St. Louis, although there there are two species of crow, American and Fish; it almost makes up for being ravenfree).  The crows are nesting too, and fly into the palms with beakfuls of sticks.

American crow (all photos A.Shock, click to enlarge!) >>

I haven’t had a chance to bird the campground systematically, but casual encounters besides crows and coop’s are yellow-rumped warbler, a common yellow-throat who sings every morning on the other side of the fence, mallards who stroll about the campsites like cats, snapping up dropped hotdog buns and popcorn, a white-crowned sparrow or two, ruby-crowned kinglets scolding fussily overhead, and Anna’s hummingbirds, a hen of which kind was moments ago diligently gathering spiderweb from the plank fence just feet from where I’m eating breakfast.  She took her time — eventually I got the photo on the left. <<

>>Cooper’s hawk in the morning sun.  It was being hassled by the crow above.

Today I’ll be at the San Diego Audubon Festival at the Marina Conference Center on Mission Bay from 11am until 5pm, or maybe a little later.  If you’re in the vicinity, come on by: there’s still both beastie and wazzo wares to check out, and other artists and exhibits to enjoy!

Posted by Allison on Mar 5th 2011 | Filed in Events, birds, field trips, natural history, nidification, three star owl | Comments (0)

I know where the Hen she sits…

…and also why it’s called “Broad-billed”.

Although those two statements concern two different birds.

Update: as of Friday morning, “Bill”, the Broad-billed hummingbird, is still reporting in to our backyard feeders, passing the 72-hour mark (I first observed him on Monday afternoon).  We guess he’ll be here until he’s not!

Breeding season for Anna’s hummers is in full swing here in Phoenix.  The males are executing their showy flights, shrieking down from a height with their gorgets flashing scarlet, making a loud peeping pop with their tail feathers like tiny bullroarers, then rising vertically upward to do it again and again, usually targeting a perched female to impress her with this routine.

<< Anna’s hummer on current nest in Aleppo pine (click to enlarge; all photos A.Shock)

And from my studio I’ve been watching a female Anna’s gathering spider webs and flying away with her beak wrapped in gossamer, a sure sign of “nidification,” otherwise known as nesting.

When our trees were trimmed last week, we searched hard beforehand to make sure there were no current nests in the trees affected, and didn’t find anything. However, late this afternoon, while scanning for the errant Broad-billed hummingbird who has been working our feeders, I did find a nest, just by luck: I saw the Hen fly up into a low pine branch, and stick.  Binox showed me a little beaky head above an apparently completed nest, built above a pine cone on a nearly horizontal branch.  From everyone’s perspective, it’s not a great spot: it’s fairly low over the path through the part of our yard we call the Sonoran Garden, and E could (and probably unintentionally will) bump the branch with his head as he walks by. To me it seems a very exposed location.  In fact, while I was watching her, the Broad-bill zoomed up and perched on a smaller branch just inches below the nest with hen, apparently unaware of her.  She knew he was there: she froze, and waited perfectly still until he went away, which was soon — he’s a restless body.

>> Male Broad-billed hummer, out of place, out of season, but he’s been here for 48 hours, that we know of.  (Click to enlarge.)

The Broad-bill flew a short distance away and settled on a preferred perch in the “ugly” lemon tree.  Although the photo isn’t perfectly sharp, you can see that the base of his bill is slightly flattened, making it look broad, especially in comparison with the needle-like rest-of-the-beak.

Incidentally, for the first time ever, the normally prolific “ugly” lemon tree set one whole lemon as its entire crop this season, and it dropped that during the tree-trimming episode.  So as far as I’m concerned the shirking citrus can bear the burden of a tiny colorful bird as its tangy winter crop for a while longer.

Posted by Allison on Feb 9th 2011 | Filed in birds, close in, hummingbirds, increments, natural history, nidification, yard list | Comments (2)

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