Wednesday, July 15, 2009

More Wrens!

Scrounging the last photos that I grabbed on a flash drive Before the Breakdown, I have a final Carolina wren post for you. The photo transfer went well, until I threw what I thought was an empty library in the trash and had to re-import it all. What's that they say about learning by your mistakes? I forget.

Phoebe had a great time documenting the departure of the five wren babies from our hanging basket nest, while I was otherwise occupied on WOSU's "Front Line" daytime talk show.

After withholding food for most of the morning, one parent came in with an enormous food item. I'm still not sure what it is--perhaps a moth pupa, perhaps the abdomen of a dog day cicada. It's huge.

I've seen this behavior in bluebirds, too...on fledging day, the parents stop feeding their young, and then sit just outside the nest with something really big and juicy-looking. My interpretation is that they're pushing the nestlings to the limit of hunger, then offering something huge...but telling them they'll have to pop out of the nest in order to get it.

This almost-fledgling isn't buying it.


I'd rather not eat something the size of my head, thanks, Mom. Maybe Mikey who eats stinkbugs will take it from you. Ix-nay on the upa-pay.


Told you Mikey would eat it.

It wasn't long before this nestling became a fledgling, buzzing unsteadily to the shelter of a juniper beside the house.



From there, it clambered to the trellis, where it teetered and panted in the unaccustomed sunshine.

The wren nest was exploding. I know that birds must be able to count, because they have to keep track of five babies in all different places at once. They use their location calls to home in on them, for sure, but they must also be able to count.

Because there was one in the birches


and another clambering up the trunk of another birch


showing its unfeathered flanks and underwings, and two more already behind the compost pile, all of them yeeking and squirking and fluttering and falling. These things are only 12 days old. That they fly at all is a minor miracle.

Over the next couple of hours, all five babies made their slow, stuttery way to the thick sumacs and brambles behind our compost pile. I'm always tempted to help, and sometimes I do, when babies get separated from their parents. Last year I used an iPod to call Carolina wren parents back to get a chick, apparently forgotten in the nest. It worked like a charm. You can read about and listen to the story here.

No need for such intervention this year. The fledging went off smoothly. There was one person who was very relieved to see the babies go, and that was Chet Baker. He got his front porch back. Sunpuppies need their sunning spots.

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Monday, June 30, 2008

Not a Wren Falls...


Carolina wrens do not mess around when they fledge. The parents call them and lead them as fast as they can to the nearest deep cover, and they keep going deeper. I’ve watched the fledging process for years, and I’m amazed afresh each time by the parents’ intuitive grasp of their chicks’ individuality. For strong fliers, an adult will fly to the nearest tree, and encourage the chick to make the flight across the lawn in one leg. For later-fledging, weaker chicks, the adult will fly a few yards, land on the ground, and encourage the chick to make the trip in short fluttering hops, leading them from shrub to lawn chair to flower bed in a zigzag path. The whole process of vacating the nest area is usually complete within minutes.
So I was alarmed to find this lone baby still moping on the downspout, long after I’d last heard the family moving into the woods the equivalent of a half-block away. He fluttered down to the base of the downspout, not up to flying like his siblings. You can see the cardboard tube that is my snake baffle in this shot. It closes the gap between downspout and house and keeps the snake from wrapping around the downspout to get up to the bucket.So tiny, and so very vulnerable. I had to help somehow.

I listened for the other birds. Nothing. Though it had been alone for two hours, the fifth baby continued to squeak, making the contact call that all new fledglings use to say, “I’m here! I’m here! Care for me!” It was extremely vulnerable as it fluttered on the ground and clambered up the side of the house. One sharp-eyed jay, one clued-in rat snake, one lightning-fast chipmunk, and it would be doomed.I grabbed my iPod and dialed up Carolina wren songs and calls. Played it on the west side of the garage, into the woods where I’d last seen the family. No response. Ran to the east side, and played a Carolina wren alarm call at full volume. An adult appeared, zooming up from deep in the woods. I paused the recording and watched. It flew right to the hostas where it had last seen the baby, and they made contact.

I smiled and sighed with happy relief as the adult perched on the crusty ol’ Pig of Good Fortune and lured the baby out of the flowerbed with insistent calls. S(he) led it to the shelter of the Japanese maple, then the forsythia bush. Baby #5: last seen headed deep into the woods, in the company of an adult.

As you read this, we will be slogging back home after a day on a tiny jet coming out of Salt Lake City. In addition to the mountain of luggage it took to get us through a week of field trips, talks and banquets, we'll have two large suitcases that JetBlue lost on our Maine trip, then sent to Utah...Extra luggage charges, anyone?

Sometime Tuesday, after I run into town to fill the car with fresh groceries, I will meet David and Mary Jane who will hand over our doggeh. Then, we will be smothered in Chet Baker kisses. I'm ready for a good gnaw on the muzzlepuffs, and a handful of sugar snap peas from the garden.

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Sunday, June 29, 2008

Bucketful of Miracles

I’ve written about the little copper bucket under our eave. In the 1950’s and early 60’s, it held a philodendron plant that trailed around the stone fireplace in our home in Shawnee Mission, Kansas. Somehow it got passed on to me, and I’ve thrown it in with my stuff and moved it a dozen or more times. It reminds me of my mom.

One day, about five years ago, I saw a Carolina wren trying to make rootlets, leaves and grasses stay on the elbow bend of the downspout by our front door. He’d bring a bunch of stuff, only to see it slide off; I noticed it by seeing a trailer of skeletonized leaves and rootlets hanging down in front of the foyer window.

I caught the wren’s eye as it perched on the gutter. “Hang on. I’m going to help you. I’ll be back in just a minute.” I went to the garage and got my 8’ stepladder and the little copper bucket, a roll of utility wire, a hammer and roofing nail. Climbed up the ladder, drove the nail, wrapped wire around it and secured the bucket up under the eave, where no rain could get into it. Took the nesting material, laid it in the bucket, and climbed down the ladder. Before I had so much as folded the ladder, the wren, who had been watching the whole operation, was hauling moss and trash to that bucket. By nightfall, he had a nest nearly complete. There was no hesitation whatsoever—just immediate, presumably grateful acceptance of my gift.

Having watched a black rat snake climb partway up the gutter two years ago (and removed said snake to another part of the yard), I’d hit upon a way to secure the nest. I wedged a big, heavy cardboard mailing tube between the gutter and the house, which keeps any snake from wrapping itself around the gutter and gaining access to the nest. It’s perfect. So I’m always thrilled to find Carolina wrens setting up housekeeping for a first and often a second brood in the little bucket. Carolina wrens keep the cleanest nest I know; I’ve never found one infested with parasites.

The wrens were sneaky this year, but I knew by the increasing size of the food items they brought that their chicks were nearing fledging. Finally I heard the chicks' sibilant, soft piping change to a squeaky chdeek! –the fledging call, the rally to flight.The first baby got a peek at the world, and stayed out front for most of the day.

By the next morning, they were lined up on the downspout, sizing up the world. It wouldn’t be long now.

Fluttering and clambering, they scrambled up and onto the bucket top. One of them was going to have to try its wings by default.The first buzzed off, crash-landing in the hostas, and four others soon followed.
I call this the popcorn phase. Babies are hopping around as if they're on a hot griddle. A slight perturbation around the nest (say, too close an approach, a slamming door) can cause the nest contents to explode. I have been hit by flying baby shrapnel in such instances.
The fifth chick (still in the nest in this picture) stayed for awhile. Awhile being a couple of hours. This was a bad choice on its part.

Next: Science Chimp to the Rescue.

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