Monday, January 30, 2017

A Loon Visits Carnegie Lake


Thanks to Melinda Varian for sending her husband Lee's photos of a loon that's been visiting Carnegie Lake. "We were standing on the footbridge that goes across where the (Millstone) river goes under the canal into the lake. A man we talked with said that he has been seeing it in the lake for about a week."

Another local birder, Laurie Larson, who keeps tabs on bird populations, said she could recall "one or two records over 30 years. It certainly is not “common,” although it is a Common Loon! I’m glad it’s finding Princeton hospitable."


One has to be quick to photograph a loon. A more common shot catches the tail feathers as it dives in search of a meal.

For fun facts about loons, check out this Cornel site, which explains that loons have solid bones rather than hollow, in order to be heavy enough to hunt effectively underwater. As a result, "Loons are like airplanes in that they need a runway for takeoff. In the case of loons, they need from 30 yards up to a quarter-mile (depending on the wind) for flapping their wings and running across the top of the water in order to gain enough speed for lift-off."

Because of this need for a long aquatic runway, loons can get stranded in small ponds, or on wet pavement that they mistakenly land on, thinking it to be water. Our visiting loon chose its lake well, as Laurie explains: "Fortunately if the weather freezes up, there’s plenty of water for the long wind-up and take-off that loons need, and this one can head for Cape May."

Update: It's a bit disjointed in this video to see all the scenes packed together, but loons play a starring role with Kathryn Hepburn and Henry Fonda in On Golden Pond.

Sunday, January 22, 2017

Water: Our Backyard Artist in Residence

Even in the winter, or maybe especially in the winter, there's a lot of creativity and beauty in our backyard, thanks to a fillable-spillable 35 gallon black tub that catches runoff from the roof. If the night dips below freezing, the open water becomes a canvas for elaborate 3-dimensional designs.



Why the water doesn't freeze flat is hard to fathom. Sometimes, if the night's freeze has been light, these geometric shapes will frame miniature pools of open water that jiggle when the tub is tapped.

Cold brings out an unexpected beauty in water, and sometimes in ourselves, if we have clothes to match the weather, and take the cold as a bracing stimulant rather than, as Garrison Keillor would say, "nature's attempt to kill us."

These images were first posted at VeblenHouse.org as News Flash: Nature is a Geometer, in a post that links to an Exploratorium exhibit that shows how supercooled water can freeze over in a flash.

Monday, January 16, 2017

Starlings, Passenger Pigeons, and the Uneaten Acorns

Acorns, anyone? It's called "flooding the zone"--a technical term commonly used by botanists who grew up playing sports. Some people see it as a mess, and curse the trees. An alternative target for cursing, just to put it out there, would be the tree-phobic landscape of concrete and lawn that we impose beneath the trees. A forest floor is far more accommodating of arboreal excess. There, a tree can let it all hang out, let it all fall down--seeds of all sorts, leaves, branches--and the forest floor will shrug, take it all in, and turn it into wildflowers.



In town, the blanketing of acorns turns into a blanketing of oak seedlings, few if any of which have any prospects of reaching maturity. The seedlings seem to be saying, "Move me to an opening along the street where I could shade some asphalt", but it doesn't look like people are listening.

For some people, a love of trees is layered with deep resentment of this fecundity. For me, looking for logic in nature's ways, the question is not "What to do with it all?", but "What's missing?" Past posts about osage orange and honey locust ask the same question, and suggest a missing herbivore that would have consumed the abundance in the past. Botanical abundance has lost a once complementary zoological abundance.


A partial answer came this past Nov. 10, when masses of starlings swept through, congregating in the pin oaks behind our house. A closer look revealed they were gobbling down acorns. Minutes later, they were gone, having left our pin oaks a little lighter.

The starling is not native, though, so doesn't speak to what would have consumed the oaks' abundance historically. And starlings appear too small to deal with the larger acorns of other species such as red oak. Still, it's behavior suggests that the spectacular fecundity of oaks might once have fed a complementary fecundity in the avian world--some highly mobile species, large enough to deal with a broader range of acorn size, that could make quick wing across eastern North America, swooping in to feast and move on.


Enter Ectopistes migratorius, a.k.a. the passenger pigeon, a bird of spectacular mobility and historical numbers. The photos are from a wonderful NJ State Museum exhibit two years ago.


A fine writeup on the Smithsonian website says "the mainstays of the passenger pigeon's diet were beechnuts, acorns, chestnuts, seeds, and berries found in the forests." They may also have swept in to feast on the seeds of our native bamboo, Arundinaria, which at one time covered large areas in the southeast and, like other bamboos, typically bloomed only once every several decades.

It can be tempting to say that the starling is providing a service by partially filling the void left by the extinction of the passenger pigeon. A few books have come out in recent years that claim invasive species like starlings aren't a big problem after all. The books in turn embolden news editors to publish articles and opeds with a similarly seductive revisionism, showing the same willingness to cherry pick evidence and rush to conclusions. I've written detailed critiques of various of these, including one recent article that mentioned starlings.


It would be interesting to explore to what extent the massive numbers of starlings have filled the niche left empty by the extinction of the passenger pigeon. Though feeding habits may overlap somewhat, one big difference is likely to be nesting behavior. Starlings compete with native birds for nesting sites, while the passenger pigeons appear to have built nests on branches, where they would not have displaced birds seeking tree cavities.



Friday, January 13, 2017

Morning Vision in the Trees

Yesterday, while my younger daughter was getting ready for school, I happened to look out the back window and saw a sight that became a vision:

After days of deep freeze, the temperature rises towards the 60s, and the squirrels are frolicking in the trees. By the tens they go. By the tens!? They flow like a spiraling current up trunks, out branches, leaping tree to tree, thinking three dimensionally. So cute and breathtaking, these acrobatic rats with charismatic tails! And so thoughtfully integrated, like the ads, with one black squirrel mixed in with the gray, all at ease and thrilled by the heady weather. Might humans, too, festering in ancient animosities, fall into long winter's slumber, then awaken in a January thaw to a fresh world redolent and warm, where life moves forward in leaps and bounds, and all fear of difference has been forgotten.

Saturday, January 07, 2017

Charismatic Chickens Explore Their Wild Side


For a long time, our chickens stuck to the straight and narrow. They lived as everyone expected them to, spending their days scratching and pecking at bugs and worms in the yard, nibbling seeds off the grass, turning all that foraging into eggs, then dutifully returning to the coop each night to sleep, or whatever trance-like state chickens attain while roosting.

We in turn would dutifully feed them, open and close the coop door each day and night, and gratefully, somewhat guiltily, make off with the eggs. My respect grew for these gentle Araucanas, going about their days, so purposeful, so competent, so giving in their convenient repackaging of nature's abundance. When arctic air swept through, they would roost in the unheated coop as always, then step spryly out of the coop the next morning, impervious, as if antifreeze coursed through their veins.

The relationship started to change, though, a year or so ago. Perhaps the four chickens had depleted our yard's supply of wild food. They discovered they could cross over the back fence, and find fresh gleanings in the town park. I began getting reports of the great delight they were bringing to kids and parents. Then they ranged farther afield, three doors up to our neighbors' backyard, where they could gorge on birdseed spilled onto the ground from the birdfeeder. They still dabbled in our tray of standard issue chickenfeed from the farm supply store now and then, but you could tell their standards had changed. They were developing new tastes, new friendships.

They continued returning each night to sleep in the coop, and continued supplying eggs. We thought ourselves so lucky, to be reaping the harvest of eggs and pleasant anecdotes these beneficent creatures produced. They were like salmon, feeding broadly, then returning with an uncanny homing instinct to feed us generously. But then one of the chickens stopped showing up at the coop at dusk. We worried that a hawk might have gotten it, but our neighbors would report seeing it during the day. Another chicken disappeared altogether, considered gone for sure until a neighbor on the other side of the park sent word that it had adopted her yard. She loved how it would come running to her when she brought it food and water. I tried to retrieve it, but the chicken clearly did not want to be caught.


The freedom of coopless living ultimately seduced them all. Our coop lay abandoned by the birds it was meant to protect. We'd spot them sporadically, in front yard or back, or up at the neighbors' as they made their daily rounds. No one knew where they were roosting, nor where the eggs, if any, were getting laid. We thought of catching them and closing them in the coop for a few days to get them back into old habits, but in a way they've outgrown that old domestic servitude, the grind of laying egg after egg to serve the master. They've discovered an old forgotten resourcefulness, awakened dormant capacities deep in their genes. It seems a dangerous life, unprotected at night, and yet they survive. It helps that the foxes don't get up this way, and raccoon sightings are rare.

Last week, I had been up very early and was just heading back to bed at 7am for a brief doze when I heard a blood curdling screech just outside our bedroom window. I ran outside with a coat over my pajamas and peered into the bushes. A coopers hawk burst out, flying right past me and up to a tree nearby. Such magnificent creatures they are. I peered more closely at the ground next to the house and saw the brown chicken, motionless in the window well. Surely it couldn't have survived such an attack, but then its head suddenly popped up. It jumped up out of the window well, gave me a quick look, then disappeared under the shrub. It had lost a few feathers, but otherwise looked fine. The feathers of a chicken, I'm realizing, provide not only magnificent insulation and some modest flying power, but also serve as a shield that confounds predators' attempts to penetrate it. The predator ends up with a feather in its mouth while the bird scurries away, and the rachis--that stiff central stem of the feather--serves collectively as body armor.

Of course, if I hadn't shown up, the coopers hawk would have ultimately had its breakfast, lunch and dinner, and we would have grieved. The chickens' choice of freedom comes with risks.


Just a few days ago, my daughter reported that the chickens were now roosting at night in an evergreen shrub at the corner of our house, eight feet up from the ground. It's comforting to know they are near. Each evening, I stop by to say hello,

and leave food nearby, under a recycling bin that got broken being used as a target for backyard lacrosse practice, then got partly consumed making trail signs for a local preserve, and now has a new life keeping rain and snow out of the chicken feed. There's collected rainwater to drink in the fillable-spillable tub in the backyard.

If a big snowstorm comes, we may pluck the sleepy chickens from their roost and put them in the coop for the night. We're letting them make up their own life as they go along, which may include a return to the coop. Yesterday, I saw the brown chicken walk over and disappear into the coop. Later on, I stopped in to find two fresh eggs, the first laid there in months. Maybe that's how a chicken says thank you if you save its life.



UPDATE: After six inches of snow fell, the chickens looked like they were going to stay up in the bushes all day, to keep their feet warm. We plucked them down and closed them in the coop for a couple days until the snow melted (this winter's like North Carolina, not New Jersey).

Any hopes that two days in the coop would rehabituate them to returning there each night were dashed, however. A few pecks at the cracked corn in morning light and they were back to their accustomed rounds,



then roosting again in the bushes next to our house for the night. It's interesting to see how they keep their feet warm while roosting, by squatting down so their feet disappear under the puffed up feathers.

Eggs from our "Easter egg chickens". In a new twist, the egg on the right has two shades of green.

Saturday, December 31, 2016

Winter Has Been Downsized

Like the incredible shrinking chocolates that cost the same but come in smaller packages, winter isn't exactly filling its three month package like it used to. This Snow Wall-E was looking pretty lonely on Hawthorn, before it too succumbed to the browns and grays of mild weather.


Thursday, December 29, 2016

When Vegetables are Stars on the Menu


At some point, during a family birthday dinner at Eno Terra, I looked up at the cloudlike lights drifting over the room and asked myself, "When did vegetables become more fascinating and profound than meat?" Everything was delicious, but the vegetables in particular were prepared in such a way that one could take a long pause to savor after each bite.

The experience itself, like the flavors, seemed to resonate far beyond one evening and one meal. Might vegetables--so much easier on the planet to grow--start to take starring roles in our diets, less from necessity or the calls of conscience than from all they have to offer? That possibility has been out there for a long time, but my love of meat has long competed with any ambitions I might have as a plant lover to see plants outshine animals at dinner time.


One of the star vegetables that evening was Romanesco--yet another manifestation of that amazing species, Brassica oleracea, from which originated cabbage, broccoli, brussel sprouts, kohlrabi, kale, cauliflower, and others, in much the same manner as all dogs were bred from a single species, Canis lupus. It's fun to think of each of these vegetables as representing an expansion of one particular part of the original plant. Brussel sprouts are lateral buds, kohlrabi is an expanded stem, and broccoli emphasizes the flowers.

Interesting to find out that the original plant in the wild was intolerant of competition, surviving on the cliffs of Dover and other poor soils that discouraged the more rank species that would otherwise shade it out. It was, in effect, one of those rare, seemingly weak, marginal, uncompetitive plants that only a botanist could love, and that much of humanity would dismiss as unworthy of our concern. Now it feeds most of humanity.

Romanesco has a wonderful taste, and can be easily cooked. We've tried it various ways, and actually prefer the simplest means of cooking, in the microwave, in a covered bowl, cut into four pieces with some olive oil and salt.


A visit to the Whole Earth Center's produce department got me into a conversation with staff about the mathematical formula that describes Romanesco's spiraled shape. Words like fractal, Fibonacci number, and Mandelbrot set filled the air, making it clear I wasn't in ShopRite anymore.


The take-home lesson, along with the Romanesco itself, was that vegetables can dazzle in flavor and mathematically profound shapes. There's an endearing story, a mathematical romance called The Dot and the Line, by the author of Phantom Tollbooth, about a boring line that learns to take on all manner of shapes to wow the dot he loves. She quickly loses interest in the shapeless squiggle she had been hanging out with. If humanity ever got serious about slowing climate change, and a radical shift away from meat spread across the populace, it's good to know we wouldn't need to suffer, and might even come to like it.



Update: Another manifestation of that renaissance vegetable, Brassica oleracea, on Columbus Circle in NY. Soon, we'll have "cabbage shows" to rival dog shows, as buff cabbages are paraded in front of scrutinizing judges.

Wednesday, December 14, 2016

Leaves and People Win in Princeton Parks

You could say this is just a photo of a local park with a lawn and a couple trees, but that would be missing the big picture. What we have here is a win-win-win-win. Now, I've always wondered why win-wins, not to mention win-win-win-wins, don't get people more excited. Anyone interested in making the world a better place knows that, given what a fix the world is in, and how busy people tend to be, if we just get one win at a time there's no way we'll ever reach our goal in time to kick back and enjoy a nice cool drink on the veranda. With all the forces conspiring to make the world a worse place, we need wins in big batches--twos, threes, as many as we can get.


So, please, show a little excitement when I point out all the wins in this photo. They all have to do with those magical things called leaves. For twelve years, I've watched those white oaks grow, each year extending their branches to offer more shade for the picnic tables beneath them. As if calibrated to the shade, birthday parties seem to grow in size and frequency each year, centered under the trees and radiating out across the park. Clustered there next to the sandbox, they are the right trees in the right place, and whoever planted them should be given an award for creating an oasis of beauty and comfort where people can come together.

But what to do with those leaves when they fall, albeit very slowly through the winter, being oaks. That's where the other wins reside, for there was a time when the town would swoop in with a big crew and a big truck, then spend most of the day blowing the leaves into a pile, muscling them into the truck, and hauling them out of town to the compost center. Nice compost, you might think, but at what expense? There's the man-hours spent, the truck to buy and maintain, the extra time to drive out of town, the export of nutrients from the park, and all the while, greenhouse gases being scattered to the winds to further trouble the earth.


A few years ago, seeing all these negative impacts on budget, park and planet, I asked the parks director if the town (okay, "municipality") could return to the old borough approach of simply mowing the leaves back into the lawn. That way, the parks department would be modeling what its environmental commission has been recommending all along, that people utilize their leaves rather than blow them to the curb.

What a joy, then, to see that this year the parks department has adopted this approach in Potts Park and elsewhere. In this photo, you can see the mulch-mowed leaves nestled between the grass blades, where they will decompose, feed the lawn, reduce runoff, and maybe even make the ground a little softer when kids fall. There's a brown tint to the lawn, but that will quickly transition back to green.

This far into the blogpost, I've lost count on how many wins this simple change in lawncare has achieved, and the tally wouldn't even include all those lower priority tasks the parks crews will now have time to do. So, grab a mower or fashion a leaf corral, and see how many wins you can gather in your own yard, and later, while sitting on the veranda, make a toast to a better world.

Monday, December 12, 2016

Woody Plants With a Farmer's Tan

A couple photos to post before fall slips entirely away:


The leaves of winged burning bush (Euonymus alatus) turn bright red in full sun, or white in full shade. This photo shows the gradation on a single bush.

Please, by the way, don't plant this species, and if you have it, consider replacing it with some less invasive colorful shrub. It can be pretty, but winged burning bush has proven highly invasive in local woodlands, outcompeting native shrubs and shading out spring wildflowers.


This maple on Aiken may have gotten a farmer's tan on the top because the lower half is shaded by the tree across the street, and thus is slower to change color.


Sunday, December 11, 2016

Gulick Park: It Takes a Fantasy Village

The stereotype is that "kids these days" tend to stay indoors, discouraged from outdoor adventure in part by woods that have become impenetrable thickets of thorny invasive shrubs. A striking counter-story to that stereotype played out in Princeton's Gulick Park this past summer. Some of Princeton's open space has very little native plantlife on the forest floor, due to past plowing. In areas where the invasive shrubs haven't filled the void, the combination of trees, sticks and empty ground can make an appealing canvas for the imagination--essentially a natural playground for kids. Some schools, such as the Willow School in Gladstone, NJ, and the Princeton Friends School, incorporate natural playgrounds into their campuses. Attendees of the Princeton Environmental Film Festival will remember a wonderful documentary called School's Out about a completely outdoor kindergarten in Switzerland. Princeton's evergreen forest in Community Park North, planted back in the 1960s, was a natural playground until most of the trees blew down during Hurricane Sandy.


My first inkling that not all kids were spending the summer huddled in front of computers and lounging on sofas with cell phones came when biking through Smoyer Park. There, in the open woods near Snowden Lane and Van Dyke was a shelter carefully constructed out of sticks. The workmanship, or workpersonship, was impressive.

Weeks later, during a nature walk I led through Herrontown Woods, the leader of the informal Friends of Gulick Preserve, Ed Simon, told me of a whole village constructed there by teenage girls. He mentioned Narnia as a possible inspiration. (Update: Though mentions of Narnia are being left in the post, the actual inspiration for this village was other books. See comment below, sent by one of the daughter's parents.)

Here's what I found on a recent visit. There were promising signs of construction along the main drag, a broad trail that extends into the woods from a little deadend fragment of Terhune Rd near Dodds Lane.



Those lean-to structures are mere prelude to the village further in. Small abodes fashioned of sticks and yarn--shall we call it Yarnia?--stretch along leafy trails that hint at a matrix of streets. Might the streets have names, and if so, would they be like Princeton's tree streets, except that Sweetgum Lane would actually have sweetgums growing along it? Or would the streets have far more fanciful names from some other world entered only through the imagination?

This one reminds me of a shelter that some friends and I made deep in the woods when we were kids. The project ended when my face broke out in a poison ivy rash from digging roots out of the ground to make a nice floor. Poison ivy roots have the same oil as the leaves, apparently. The rash gave me Nixon-like jowls for a week. Still, it's a very positive memory.



At times like this, it would have been helpful to have read fantasy fiction, to better understand whether these pebbles are a literary quote or, perhaps, some sort of currency for use in transactions with other forest dwellers, with protective netting to keep the Rock Doves from stealing them.



A bit of speculation here, that the village's proximity to Gulick Preserve's pond is not coincidence. Wikipedia tells of the Wood between the Worlds, "a pond-filled forest in The Magician's Nephew (1955), the sixth book in The Chronicles of Narnia by C. S. Lewis. Each pond is a portal that provides instant transportation to a "world" such as ours and Narnia's."

The kids must have been surprised, one fateful day in early September, to step into the pond and be instantly transported to school.

Saturday, December 10, 2016

Coralberry: Late-Bloomer in the Whole Earth Center Raingarden


The narrow little raingarden in front of the Whole Earth Center, along the Nassau Street sidewalk, is a bit of an anomaly. It flourishes beyond all expectation and despite several factors that could easily work against it. Portions of it are covered by a canopy, which means those areas receive no rain. And though I weed it periodically, do some thinning and trimming, and clean up any trash that blows in, there are others who take care of it as well. A professional landscape crew comes in each spring and lays down fresh mulch. I see signs now and then that someone on staff is also paying it some attention. That none of us communicate or coordinate would normally lead to problems, and yet it all works out.

There are, too, a few plants in the raingarden that wouldn't normally be considered ornamental. Fringed sedge and deertongue grass are wild natives, and yet provide a look of surprisingly attractive grassy opulence along the sidewalk's edge. And the native coralberry in these photos, taken a few weeks ago, makes a nice mound at the building's corner.


Bees, I discovered one day walking by, take an interest in coralberry deep into the fall.

A closer look was rewarded by this scene. Turns out the coralberry has its own brand of commerce--a sort of roadside stand set up in front of the Whole Earth Center, serving organic nectar to honeybees.

It's not coincidental that this native shrub looks reminiscent of the nonnative and frequently invasive honeysuckle shrubs. Both are in the family Caprifoliaceae. Grab your botanical latin books to find out the meaning buried in the scientific name, Symphoricarpos orbiculatus.

At the other end of the raingarden are the more mainstream native shrubs, favored for the showy flowers and bright fall colors that the coralberry doesn't deliver on. Fothergilla (witch alder) turns brilliant orange, contrasting with the purplish oak-leaved hydrangia behind it.

One nice trait of the corralberry for us lazy propagators is that it makes new plants when its branches touch the ground. Each can be dug and grown into a fullsize shrub. From old raingardens, new ones can be born.


Tuesday, December 06, 2016

A Modern Times Moment With Persimmons


There's a scene in Modern Times where Charlie Chaplin's fantasy of domestic bliss includes reaching out the window to pluck some grapes. A cow comes to the back door to supply milk. Nature is cleverly tended to put its bounty within arm's reach.

I think of that scene every time I bicycle over Princeton University's graceful Streicker Bridge above Washington Road, ever since I noticed some native persimmon trees rising up alongside the bridge. They were planted intentionally, like Chaplin's grapes, and each year they've gotten higher, pressing their leaves and fruits closer to the fencing .

Posts from 2014 documenting the persimmon trees' rise can be found here and here, and a 2015 post is entitled "Close but no persimmon".



There's a catalpa growing within reach as well, but that's not as appetizing, somehow.


This year, the long awaited casual Chaplinesque reach was finally possible. Heading to a university soccer game, I'd check their progress.

The fencing is a real deterrent, though, as if Chaplin's dream of domestic bliss were set in a high-crime neighborhood where all the windows were barred.

At last, time and fruit seemed ripe. But wait, one problem. It's a persimmon. Can't they be astringent in the extreme? So much expectation, only to have a very pucker-mouthed ride home.

The soccer season passed less than gloriously into history, the leaves fell. A few persimmons remained on the tree, but out of reach.

Giving it one last try, I gave up on the fruits coming to me and went down below the bridge to see what lay on the ground. There, preserved on top of a leaf, was one ready to taste. It was sweet, without a hint of astringency, delicious beyond all expectation.

Sometimes dreams don't play out the way you imagined, but they can still come true.


Saturday, December 03, 2016

The Giving Plant--Christmas Cactus

A christmas cactus is like a chicken: it has beautiful plummage, gives and gives and asks for little in return. The world's artesian wells may have long since dried up, but nature still supplies fountains of generosity. Somehow this plant survives our minimal attention, then blooms in abundance each fall. Unlike storebought orchids, which clearly require more disciplined care and understanding than we have to give, a christmas cactus seems to accept that we are imperfect, highly distracted human beings with lives to lead and places to be. "Don't worry," it seems to say, year after year. "Water me when you think of it, and in the summer you can put me out on the patio and pretty much forget about me until the fall. No worries. All good, though not too much sun, if you think of it. Thanks. And if a squirrel or the wind knocks me over and some of my stems break? No problem, just



stick them in a pot and make a new plant."

Ours is a secular christmas cactus, blooming as it does during Thanksgiving. Like a volunteer hardwired to serve the community, it needs no coaxing or pampering, but seems intent on making the world a better place, thriving on little more than inner drive and our gratitude.