Monday, July 02, 2007

Malicious Melodies

Wherever there are cattails, you’ll hear the windup-toy song of the marsh wren. It’s much more melodious than the dry, ticking song of the sedge wren. Like some other wren species, (think house wren), marsh wren males build several “dummy nests,” perhaps to show the female their nest-building and territory-holding prowess. They sing and posture next to the nests, and eventually a female will select one to line and lay her eggs in.
Marsh wrens share a bad habit with house wrens, piercing and throwing out eggs in other birds’ nests.

I wouldn’t do that.Yes you would.

Whether they’re trying to eliminate competition for food on their territories, or just being narsty, marsh wrens will go into red-winged and yellow-headed blackbird nests and throw the eggs out. Hmmph. Carolina wrens are much better neighbors. They build one nest and stick to it, and they don't bother anyone else's eggs.

Boy, are marsh wrens cute, though, straddling the stalks and winding up their song, a feast for the eye and ear. Springy little things. Wrens are pure bird spirit.
These were photographed along Pipestem Creek near Pingree, North Dakota, on a pellucid June day, in good company.

Chet Baker was a perfect gentleman today, in case you're wondering. He had one more episode of uppitiness yesterday and I rolled him on his back and pinned him down and Darthed him good. Tonight, he waited in the car while we were at a restaurant and, courtesy of Liam, there was a bag with a cheeseburger in it on the back seat, wide open, and he didn't even touch it. Didn't even need to warn him not to mess with it. Now that's a good boy.

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14 Comments:

At 1:38 AM, Blogger catbird said...

Funny how the wren in the marsh is far cuter than the one that's building 27 nests in your yard -- but I have a newfound appreciation for the avian "ladies' man." He's one bad mother...shutshomouth!

As for seeing "the other" surface in our beloved pets: it's a sobering reminder of the relative newness domestication. Judging by the events in the news, we aren't that far behind.

 
At 1:40 AM, Blogger catbird said...

Somehow, the "of" between "newness" and "domestication" managed to get away.

 
At 5:51 AM, Blogger Jayne said...

What a cutie that wren. Who'd know he's so snarky? Good boy Chet!

 
At 6:41 AM, Blogger Mary said...

Awww. That little wren looks to cute to be a villain. In the last photo, he was singing to you! (back off, Jack?)

Was Chet alone with the cheeseburger? My girls would have *never* given up the opportunity. He is a very good boy!

 
At 6:55 AM, Blogger nina said...

Yes, "pure bird spirit". And there's nothing sweeter than watching one singing joyfully.
Maybe the reason our tree swallow sits atop their house (box) is to guard against the house wrens in the area? I see him there, even in the rain, his mate inside.
And, for a while, before the swallows nested, the house wren was eying the property!

 
At 7:18 AM, Blogger Rondeau Ric said...

That's a harsh test of BBs control.Glad he passed.

 
At 8:40 AM, Blogger Jess Riley said...

I just saw my first marsh wren at Kohler Andrae State Park last Sunday. Too fun! Also, could Chet B. BE any cuter in that last series of photos? Love the SuperDog pose on the floor with his back legs splayed out. (Daisy does this too.)

 
At 9:56 AM, Blogger Michelle said...

Julie,

Along the lines of kicking eggs out of nests, I wanted to post an observation on the mountain bluebirds that nest on our 10 acres in the National Forest of the Black Hills of SD. I have 4 BB boxes up, and each year they are occupied by BBs (usually mountain, especially the last 2 years, but before that we had easterns too) or swallows. At the end of nesting, I can count at least a dozen BB babies learning the ropes on the top of our deer-proof (but not vole proof) 7' high garden fence.

This spring, we have a pair of BBs that are on their third try at nesting in the rain gutters, alternating between two of our back decks that are protected by an overhang that is about 2-1/2 feet wide. I have not interfered with this seemingly poor choice of real estate, but each time I think it's about time to hear some peeps, we get a big rain. So far no peeps. In fact, I haven't seen the female lately, but we've been very busy going to town, etc.

On their second attempt, I was sitting on the deck enjoying the day, when the male suddenly darts out of the nest in the gutter and spills out an egg that splats on the deck! It looked intentional. I couldn't believe it. I was disgusted with him. What was he thinking? The pair was having enough trouble as it was! Later I was showing this to my husband, and perhaps unrelatedly, I found a long screw nearby. Our house was built only 2-1/2 years ago, so we (and the chickens) find nails and screws all the time. Was the male trying to escort that long, dangerous pokey thing out, and ended up hooking a precious egg? I'll never know that for sure, but maybe you can say if male BBs kick eggs out of the nest for another reason...

 
At 10:18 AM, Blogger Julie Zickefoose said...

Yes, Baker was alone with the cheezbugga. Gasp!

Jess--yes, Baker is verra cute in the pictures,but the soundtrack was scaary. Very weird to be snarled and barked at by your little black third child.

Michelle, it's always a good idea to give a bluebird the benefit of the doubt in a situation like this. The male may well be aware that his mate is building in a lousy place. He may have been trying to move the egg to another location,and dropped it accidentally.

For example: I had a male eastern bluebird angrily deconstruct a nest every time his mate built one in a certain box in our backyard. He'd peck her and take the nesting material out as fast as she put it in, then fly to a box in the front yard and wingwave and sing to her. I thought he was crazy until I realized what was going on. I finally figured out that he was trying to get her to nest in a box that he could watch from his FIRST mate's box...he was taking care of two females. The female whose nest he kept tearing up had just been widowed by a hawk. She needed a mate. Mr. Bluebird didn't want Mate #2 to build in a box he couldn't see from the front yard. Finally she did build within sight of his first mate's box and he fed and protected both broods. Crazy like a fox.

I can't comment on whether the male was trying to remove a dangerous item from the nest, but it's a theory.

Generally, you don't see crazy or maladaptive behavior in birds. You need to sit down and think about what is happening, just as you're doing, and most importantly watch what's going on for a while, to figure out why they're doing what they do. It almost always makes perfect sense. It only seems nuts when we don't have the time or continuous observations to sort out the back story. Keep watching and let us know if you find anything out. Thanks for the observations.

 
At 11:30 AM, Blogger possumlady said...

Wow, talk about discipline! Baker is one strong little boy! I had my old dog Jiminy for about a year when on a cold January day, my sister and I were driving around with her. We stopped to do some window shopping and had a bag with a half of a Chipolte burrito wrapped in foil in it, pushed up between the windshield and dashboard. When we returned, Jiminy was still laying down in the back seat, but I noticed a few stray grains of white rice on the floor. Then I noticed the ripped open bag and tinfoil, under the drivers seat!! Quite sneaky she was.

 
At 12:21 PM, Blogger Mary said...

He was having Darth flashbacks. That's why. I'm so impressed.

Michelle's story and your reply are quite interesting. Bluebirds have a lot of drama in their lives...

 
At 12:33 PM, Anonymous Anonymous said...

My dogs would never leave an unguarded cheeseburger alone. What a good boy you are Chet! Kathy

 
At 8:03 PM, Blogger Mary C said...

Hi Julie - how interesting that you posted about the Marsh Wren on the same day Birdfreak Birding Blog had a post on the Sedge Wren. Both posts were quite informative. But I doubt I would see a sedge wren here in California. I do hope to find a Marsh Wren or two one of these days. I'm sure if I keep looking and listening I should find one.
I had to laugh about Chet not eating that cheeseburger, probably having a Darth flashback. That is quite impressive to leave a dog alone with food around and he didn't touch it. He must know you are Alpha and didn't want to cross the line! :)

 
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