The Empty Nest

The house wrens’ nestlings fledged this week. They fledged while I was busy doing other things, and I regret missing the moment of their departure. (For more about the house wrens, see herehere, and here.)

Wren August 4

During the last two months, our little family of birds have been a constant source of amusement and amazement. At first the male worked alone, a tiny bustle of feather and song. Then his mate arrived, bristling with scolds. Together they transformed the nest box into a vessel seemingly immune to the laws of physics. They stuffed it with so many twigs that it should have burst at the seams or collapsed into a singularity. Instead it rocked gently in the wind as eggs were laid, as the first male lost control of the box and his eggs were destroyed, and as he reclaimed the box and eggs were laid again.

Wren August 14

In early August, the eggs hatched.

Wren August 15

Wren August 14

As the nestlings’ voices grew more and more insistent, the wrens again defied physics. They expended so much energy, feeding their young, that both birds should have grown weak and thin.

Wren August 14

Wren August 14

Among the insects I recognized, there were caterpillars, moths, katydids, and crickets.

Wren August 23

Wren August 23

The yard should have run out of insects, but it didn’t.

Wren August 23

Wren August 24

I don’t know how many nestlings they were feeding. More than the box should have been able to hold, wedged in with all of those twigs.

Wrens August 22

Wrens August 22

Wrens August 22

Wrens August 22

Wrens August 22

Then, around mid-morning on August 26th, I found the box abandoned.

I want to believe that I’ve heard the fledglings, in the days since, begging from deep within the wax myrtle, or from the neighbors’ yards, or across the street. I want to believe I would recognize them if they returned to the yard, which seems unnaturally quiet now.

Perhaps they will return next year, all grown up and beyond recognition. Perhaps they will fill the yard, once more, with songs and scolds. Fill the nest box with twigs and eggs, and, in the process, fill me with more delight than I should be able to hold.

Fall Webworms

Pear Leaf Aug 2

Earlier this month I noticed a few silk-encased leaves on the pear tree. I suspected the webs were the work of Eastern Tent Caterpillars, because I had found a few of these caterpillars under the pear tree last summer.

Last summer’s caterpillars never caused a problem in the tree, but this year the tree sprouted more and more webs.

Pear Leaves August

This afternoon I typed “tent caterpillar” into my web browser and within a few clicks discovered I was on the wrong track. It’s the wrong time of year, and our webs are located at the ends of branches rather than near the trunk. So these are not Eastern Tent Caterpillars. Instead, I believe they are Fall Webworms.

Caterpillars August

(My caterpillar identification process is not very scientific, consisting mostly of browsing the internet and trying find something that looks like my photos. Please comment if you can correct or confirm my identification!)

Caterpillars August

The caterpillars are not doing much damage. There are only six or seven webs, confined to the lowest branches on one side of the tree. The affected leaves are being eaten, but they represent a very small proportion of the tree’s total leaf count.

Caterpillars August

Caterpillars August

Even though our tree is not suffering, several nearby trees are completely shrouded in webs. As I’m reluctant to test the health of our pear tree, I’ve trimmed its most heavily webbed branches and opened the remaining webs as recommended.

Caterpillars August

I don’t know if the House Wrens will eat these caterpillars, or if they’ll leave them for other birds. But if they do eat the Fall Webworms, my work should make feeding their hungry nestlings a little easier.

Wrens August 22

Flecked with Gold

Cicada Wing

A cold front swept through the yard this week, carrying a hint of fall. My mood turned slightly melancholy as I rooted in my closet for sleeves and jeans, as flashes of orange and yellow caught my attention.

Wasp August 15

Butterfly August 4

Butterfly August 15

Butterfly August 15

Bumblebee August 16

Goldfinch August 16

I’m certain that summer will return next week, as hot and humid as ever. But it’s green cloak is wearing thin, and it’s remaining months will be flecked with gold.

Grackle July 31

Wasp August 15

Green Tree Frog Aug 12

Venom in the Yard (Arachnophobia Alert!)

Black Widow Aug 14

Last summer brought dozens of black widow spiders to the yard. (For more about our encounters last summer, see here, here, and here.) I suppose the spiders had been in the yard all along, without our noticing them, but I felt a sense of responsibility once I knew they were there. We killed the ones we found (and destroyed their eggs) and began eliminating the spiders’ hiding places.

Black Widow Aug 14

We’ve found far fewer black widow spiders this year. Did our efforts last summer make a difference? Did the longer, colder winter help?

Black Widow Aug 14

Perhaps the population isn’t smaller at all this summer, only better hidden. Much better hidden, if that is the case, because I am diligent about looking for their webs as I work in the yard.

Black Widow Aug 14

I always feel a twinge of regret when I kill the spiders, because I don’t like killing anything. But I would feel even worse if I left them to multiply and spread into our neighbors’ yards. What do you think? Would you kill them, if they were in your yard? Is there a better solution?

Robber Fly

Wouldn’t it make a magnificent sci-fi monster?

Robber Fly August 12

(According to the Encyclopedia of Life website, there are over 100 species of robber flies in Virginia…)