Showing posts with label invasive species. Show all posts
Showing posts with label invasive species. Show all posts

Wednesday, June 21, 2017

Cats Just Want To Have Fun

When I was a kid, I found a baby robin on the ground. I got the standard rescue equipment: a shoebox, some Kleenex, and a worm to be named later. Then I went to look for the worm in our compost pile. We had a compost pile because Dad was a liberal.

But I was squeamish about worms. I gripped it best I could and dangled it over the gaping chick, but the worm veered away at the last moment and I freaked out and dropped it and it went squirming around the little bird's feathers and I ran off with the willies. I don't remember if anyone intervened but I suspect the rehab effort resulted in a backyard burial.

What did I know? I know I thought one big worm would be quite enough for a little bird, but that's not actually true. I know this because of our chickadees Marge and Studley Windowson, and because of my friend Julie Zickefoose, who keeps getting wheedled into taking care of baby birds because she knows how. If you're going to make an entire bird out of the little goober that emerges from the shell, and fast, you need to really shovel in the groceries. Julie reports that your basic baby bird needs to be fed every half hour all day long for weeks, which is quite the imposition on an adult human with other stuff to do. Marge and Studley, who are likely to have four babies going at once, are bombing into the nest box every other minute with bugs, all of which they had to find themselves. It's exhausting. The year the weather went all wonky and the bugs were scarce, both of the Windowsons looked like shit. They ran themselves skinny.

The skinny year
It's a really big production. Months. Even before you get the eggs going, there's this elaborate nest to make out of grasses and stuff all woven together perfectly without using any fingers. That takes weeks. There's a little cup in the middle of it that has fluffy material like fur worked in special, so as to be cozy. Then come the eggs and the incubation period, during which Studley has to find double the usual amount of food to feed himself and Marge, and then the truly heroic business of cramming bugs into the chilluns all day long. Every year, I am immensely proud of them.

Marge and Studley are Dave's particular favorite little buddies. Well, and everyone who looks like Marge and Studley, which is basically all of the chickadees. He it was who built the nest box for them. We have had our pets--three, including two happy cats who have been advised they are invasive species, and are not allowed to stalk birds. The chickadees are the closest wild items that might qualify as Dave's pets. He loves them.

This year everything was right on schedule. The nest was started in early April, incubation a few weeks after that, and then, in mid-May, both Marge and Studley were flying in and out of the box. I opened my window in case I could hear peeping, but I couldn't. It takes a few days for it to become audible from my window. And then, that soon, activity ceased. I never saw both Marge and Studley at the same time. Finally Marge, or possibly Studley, flew to the nest box with a caterpillar, looked inside, hopped in, and hopped out again a minute later, still with the caterpillar. And flew away, and never came back.

When the flies showed up, I had Dave take the box down and we looked inside. The nest was perfect. You could still see the cup with the fuzz around it, almost in pristine condition, because nobody got big enough to stomp it down. There were four tiny desiccated bodies.

My birder friend Max said this is what happens when one of the parents dies.

CatBib
I have two neighbors whose cats roam my yard. The cats' names are Anjali and Sid. Like Marge and Studley, they get to have names because someone cares about them. Personally. Both neighbors know how I feel about outdoor cats. They're both apologetic. I'd even gotten an email from one of them when she decided to start letting her cat out. "I can't keep Anjali in anymore," she said. "She wants to be outside so badly. But let me know if there's anything I can do to keep her from hurting your birds. Anything."

"You could put a CatBib on her," I said. I'd even bought a dozen to give away. "It's highly effective. It doesn't keep them from moving or climbing, or shitting in my tomato patch, but it interferes with that last pounce when they're hunting."

"Oh, that thing looks weird. I would never hang that on her collar," she said.

"Or you could give her one of these wide, bright collars to wear. It's not quite as effective, but it makes it a lot easier for the birds to spot them," I said.

"Oh, no, I couldn't make her wear that. It's so undignified."

Not long after, I found the tag and collar of the other woman's cat. Sid. It was directly underneath my bird feeder. The chickadees in particular like to take their seeds to the low branches of the nearby azalea. I returned the collar to the owner. She looked remorseful, and yet, somehow, helpless.

I don't have four new chickadees. Sid doesn't have his collar. But he and Anjali have their entertainment. And their dignity. And maybe they have Marge, too.

This is personal, now.


Wednesday, June 7, 2017

No Caws For Complaint

I don't like to complain, but sometimes I do anyway.

More than one person has sent me a video of a sweet little girl who feeds crows and the crows respond by leaving her little trinkets as a thank-you. She's got hundreds of baubles and treasures by now. The whole thing is adorable.

All our crows ever leave us is alone. And we've been sucking up to them for years.

I know at least a half dozen people right here in town that have personal crows. We like crows too. We know how smart they are. We figured they're so smart they'll know how much we like them and appreciate all the little ways we try to make their lives more pleasant. We think they'll start to approach us on their own and ask if we maybe have an extra walnut, and tip their heads to the side and flare their rictal bristles at us as a sort of howdy-do. The relationship will progress, we'll give them fancy British names like Nelson and Chauncey and Percy, and ultimately they will converse with us in a form of English that is imperfect and yet still easier to understand than Matthew McConaughey. We will all sit around of an evening enjoying walnuts and beer as the sun goes down. We're grownups and have no need of a bunch of baubles; one or two would be fine.

But none of that has happened. We line up walnuts on the wall and they observe us and take them away just as soon as they're sure we're not looking, because they know that would give us too much satisfaction. It makes us feel like pimply seventh-graders who are trying too hard and still don't get to sit at the popular lunch table.

I don't know where we went wrong. I remember at one point I found their cawing sort of obnoxious and I went out to the yard and cranked my head up to the treetops and yelled HEY! HEY! HEY! HEY! HEY! HEY! HEY! HEY! just so they could get an idea how annoying it was, but that was years ago, and I'm really sorry. But they may have pegged me for an asshole then and there, and passed the information down through the generations. I don't know. I've been real nice since then.

It's nesting season now and some of our crows have young'uns hopping around on the ground. That is what they have evolved to do: hop around on the ground for a few days before they're old enough to fly. I'm not sure how they get to the ground without getting all dented up but maybe they get just enough wind resistance from flapping their nubbins to cushion their landing. Their folks keep an eye on them and do their best to rout predators and scalawags, but it's not a perfect system as long as there are domestic cats around. The crows have been working on their strategy since the Cretaceous but domestic cats have been around here for a few hundred years tops, and this is true even if you've had a cat all your life and so did your Grandma--that's still not forever, sugar pie. Over a third of American households host a cat, and that's quite the uptick from zero.

So now we've got upwards of, let's say, fifteen cats per city block and fourteen of those are well-fed, subsidized, vaccinated, healthy, glossy little killing machines that are let out of the house so they don't get all mopey and also so they can shit in the neighbor's tomato bed instead of in the icky-poo litter box. Most people who let their cats out to terrorize wildlife are real softies, but their concern extends to only the one species. House cats are obscenely effective at killing wildlife. So I try to make my own garden a sanctuary by discouraging them. It's effective only inasmuch as all my neighbors' cats now blast out of the yard whenever they hear me turn the doorknob, but you know? I can't be turning my doorknob all day long.

Anyway, because it is that time of year, we have noticed that our crows occasionally make a particularly pointed racket, and when that happens, I go out and spot the crows and see exactly what direction they're racketing at, and then I go running and hollering in that direction and flush out the inevitable cat, and I have been hoping the crows are noticing which side I'm on and will henceforth reward me with their companionship and approval, but they haven't. So be it. I still wish them the best.

But when they're in full molt in August and have to slink out of the lunchroom all ratty-tatty, I plan to point and snicker.


Because I am an optimist at heart, I prefer to think of the following twenty seconds as a concert just for us, by our own personal, if recalcitrant, crow:





Saturday, September 10, 2016

The Berry Poopers

Wickedly smiling berry pooper
As my niece told me, pokeweed is invasive--so much so that it has now outrun Wikipedia, which thinks we don't have any here. It's planted by birds. Birds are unaffected by the seeds and so they eat them and poop them out and fly to a branch and smile wickedly at us. It's an inward smile, on account of the beak situation. They're smiling because pooping out toxic plants is their plan to get back at us for letting our stupid cats out. And for pesticides, and windows that look like sky, and tidying up our gardens so there's nothing to eat, and climate change that's throwing off the insect hatch, and mountaintop removal, and all that there.

We don't like invasive species, officially, even though we're responsible for most of them. Some of them chew up all the plants we really like, or choke off the fish in lakes, or outcompete natives, or otherwise throw everything off balance. Even the ones that appear harmless, like the plague of ring-necked doves, can be very disruptive to the musicsphere. All hoo-hoo, hoo-hoo, all day long, like some crappy avian New Age music that they play in the naturopath's office that's supposed to calm you down and totally doesn't. Somewhere in Florida right now there's an escaped tropical pet bird with constipation heading this way with a load of kudzu seeds and a pair of stowaway Japanese beetles. Invasives! Bleah. We hate them.

That might be what psychologists call "projection." After all, the worst invasive in the world is us. The glaciers held us in check for a long time, but once they pulled their icy lips back off the marble, we invaded like crazy. Look, there's a nook! There's a cranny! Let's jam ourselves in there. It'll be right roomy once we wipe out all the big scary animals. Heck, we can use this entire middle part for growing Cheez Doodles if we shoot all the bison that are stomping on it. And their bones are so much fun to stack up.

We can't get enough of invasion. Even now we've got people absolutely incensed that some of the real estate has been pulled off the market, like our parks and refuges, because all that wasted land could be used to make hamburger or toilet paper or money. We assume we own every little thing and then we treat it like we can always get more.

But right about now the world is gathering up its forces. There's anthrax thawing out in Siberia. There are viruses auditioning mosquitoes and chickens for hosting rights. There are droughts spreading and people moving toward diminishing sources of water and we're bombing each other over the goodies that are left. The sea is rising and sending little fingers into the coastline. That's the earth feeling along the ribs, looking for the sternum and diaphragm, and when it gets a good grip it's going to Heimlich us out of here.

The earth won't last forever, either. The sun's getting brighter, and the oceans will evaporate, and the tectonic plates are going to grind to a standstill, and the planet's going to get a good wobble to it, but it'll still be a cushy ride for another billion years or so, plenty of time for a do-over of the species list. Maybe it will even come up with something like us, with an ear for music, prehensile antlers, a handy pouch, and two tails to send mixed messages with. Maybe it can whomp up something really smart. After all, it only took about sixty million years to score a human being out of a basic shrew. Smart's okay. Wonderful things have been created by smart humans.

And maybe next time the Smart won't have enough momentum to outrun the Wise.

Wednesday, August 14, 2013

A Marmoration Rumination


Sometimes I graze my way through my raspberry patch as efficiently nom nom nom as a caterpillar, and then I'll pop one in my mouth and nom nom nom it will be all bleah patooie.

You can't tell which ones are going to be all bleah patooie. What I assume is that I've gotten into a berry that a stink bug has just pooted on. Every now and then I see an actual stink bug. And then I think: are you a brown marmorated stink bug? And if you were, how would I tell? Would I look for...marmorations? And what would those look like? Shark music accompanies these thoughts.

"Marmorated" apparently means streaky-looking, or marbled. I see no reason the bug couldn't have been called the Marbled Stink Bug. We already have plenty of other perfectly good marbled items, such as the marbled murrelet and the marbled salamander, and the word serves us just fine. "Marmorated" sounds like the bug has just had some countertops or flooring installed. But we're stuck with it.

And we're stuck with the bugs too. Sometime around the turn of the century (a phrase that used to mean something different when I was coming up) the first marmorated stink bugs arrived in or around Pennsylvania, and nobody thought it was a good idea, but now they're all over the place. They've expanded their range to just about every eastern state--and Oregon.

Unlike ladybugs, stink bugs are actual bugs. This means they are members of the order Hemiptera and they have sucking mouth parts. Most of us call just about any insect, arachnid, or small crustacean a "bug," but you don't want to make that mistake around an entomologist. They're prickly about the distinction, and they probably have access to ways of making your life miserable.

Speaking of making your life miserable, that's a specialty of the brown marmorated stink bug. They damage crops, especially fruit, like a lot of other bugs. They're resistant to pesticides, because they jam their mouthparts into a fruit before sucking instead of licking the surface the way we'd like them to. But the worst thing about this particular stink bug is it wants to spend the winter inside your house. They will swarm in via any space they can fit through, and they're flat--if your home does not have openings big enough for a stink bug to fit through, you probably aren't getting enough air. Once inside, their plan is to hibernate, but it's usually too warm, so they start banging into shit and stuff. And whenever they get upset, banging into shit and stuff, they emit a noxious odor through holes in their abdomens. They do this as a defense mechanism.

We employ a very similar defense mechanism in this household that keeps people away from us, including people who may have infectious diseases. Works good.

The brown marmorated stink bug is an invasive species. A species is called "introduced" if it shows up and mingles quietly by the punchbowl, but "invasive" if it spills out into the neighborhood and keeps everyone up. And I didn't even need to look it up to know that the brown marmorated stink bug came from Asia. Every damn thing you don't want comes from Asia, no offense. Japanese beetles. Asian swamp eels. Chili thrips. I had a bad bout of child thrips once, and you wouldn't like it. ("Thrips" is both a singular and a plural. To everyone who already knew you can't have just one thrip, I offer a kudo.)

These populations might not take hold with a single introduction, but repeated invasions eventually do the trick, such as on ships that sail into a port regularly--a phenomenon known as "propagule pressure," a bad bout of which I had once, and you wouldn't like it.

One day dawn will arrive in the Western Hemisphere and everyone will have dropped dead of some respiratory crap that started out in some Asian chicken. The next day we will all have been buried in kudzu. And all we ever sent to Asia was the guppy, which isn't bothering anybody. Oh, and our manufacturing jobs.