Wild Goose Watching

Winter's not gone yet, if the wild geese fly that way.

-- William Shakespeare, "King Lear"

A cool October Sunday morning and I am sweeping. The trees are starting to color and the leaves are falling in earnest when shaken by the breeze coming from the north. It is blessedly quiet, only a couple of dogs barking in the near-distance dog park, the occasional jay or crow calling and the sound of my broom brushing together the acorns on the patio. The clouds are being chased across the sun. 

It is slow right now, no runners or dog walkers or kids yelling. No one heading to church or VFW pancake breakfasts or pick-your-own apples or cross-country running matches. I fully expect to soon hear this activity as well as neighbors using their blowers on the fallen leaves (fighting the wind blowing more down) once it is the legal start time for noise on a Sunday. (I hear them now as I write.)

There are fewer acorns to collect this time than last time but they are still falling in smaller numbers on the roof of the enclosed porch and in the lawn, where I have to step carefully if I am doing any yard work. I raked locust pods from the front lawn before our mowing guy came through, and expect to do it again before he next comes. The yew hedge, I notice, has dropped its uneaten red berries on the edge of the driveway, and I push those away with my broom, too.

"Moongooses" by Wildlife Terry is marked with CC0 1.0.

I enjoy the quiet, but then I hear the distant honking. I stop and look at the sky where it is not blocked by trees, and I wait. 

This time there are only about 40 Canada geese very high up. Most of them are in a long V while some are in an uneven line to the V's left. They are flying southeast because at this time of year they are migrating to their winter grounds. I always stop to watch the flying geese when I hear the honking. 

It is not as though these are rare migrants. In my part of the world they are far too common. Decades ago a few did not migrate. They found parks, office campuses and backyards full of food, the weather not too bad and few to no predators. They stayed, they bred, they created a large number of little fuzzballs (one brood each year can include from two to eight goslings) that start off looking so cute but then grow to look just like their parents. Then the cycle begins again.

Canada geese, whether they are wild or domesticated, are protected by treaty. They can't be hunted except during specific state hunting seasons. The hunters must be licensed. Those hunts help keep down the population. But people in cities are horrified when officials order a goose "culling" to cut down the number befouling the parks. They rally, they protest. These are people who do not hunt and do not see an ecological imbalance, they see "nature" being destroyed for (to them) no good reason.

At their worst, grass and ponds are green with goose excrement. When the young are small the goose parents, which mate for life, are extremely protective and will attack a person who gets too close. Most of the time when I hear honking it is from geese that are in the nearby community garden, or the pond a quarter mile away. When they fly they are not heading north in the spring or south for the winter, they are rising from one pond and heading to another so they can continue eating. When people walk their dogs at the community garden the geese take off with a noisy clatter, scattering in many directions but then meeting up later. (In that they are like another now-common pest where I live, the deer.)

How I see Canada geese all too often. (Margo D. Beller)

But this morning's calling geese are wild geese, doing what wild geese are supposed to do - get out before winter comes and the lakes and ponds freeze.

Why are they flying in a V? According to an article by the U.S. Library of Congress:

First, it conserves their energy. Each bird flies slightly above the bird in front of them, resulting in a reduction of wind resistance. The birds take turns being in the front, falling back when they get tired. In this way, the geese can fly for a long time before they must stop for rest. The authors of a 2001 Nature article stated that pelicans that fly alone beat their wings more frequently and have higher heart rates than those that fly in formation. It follows that birds that fly in formation glide more often and reduce energy expenditure (Weimerskirch, 2001).

The second benefit to the V formation is that it is easy to keep track of every bird in the group. Flying in formation may assist with the communication and coordination within the group. Fighter pilots often use this formation for the same reason. 

Easy birding atop Hawk Mountain, Pa. (Margo D. Beller)

If I am outside at the right time of morning on the right day in the right month, I can see multiple large Vs of geese, sometimes with hundreds of birds. This is an easy type of bird watching, just as being on a hawk platform and watching the migrating eagles, buteos, accipiters and falcons heading south over mountain ridges each autumn is easy birding. The birds fly in daylight and are big and easy to see, not like the small warblers jumping around quietly from branch to branch in still-leafy trees. Finding warblers in autumn is a challenge, but there are times I don't want a challenge. I just want to stand still on a quiet Sunday morning and look up at a V of wild birds flying away to the south.

Earthbound, I envy them. 

Cleaning Up After The Trees

 In October, a maple tree before your window lights up your room like a great lamp.

-- John Burroughs

October, the year's tenth month (with a name reflecting when it was the eighth month under the Roman calendar), is a time of transition. October is when you really notice it is darker later in the morning and earlier in the evening. October is when the weather switches from over 80 degrees one day to cold enough to break out the winter quilt the next. 

The acorn doesn't fall far from the tree - a small sample of
what I have been sweeping up from the patio.
(Margo D. Beller)

October is when the pumpkins, squashes and dried corn threshes start showing up on suburban doorsteps with the September mums. You realize you are closer to the end of the year than the beginning, and you wonder if there will be more snow this year than last.

For me, October is when I start thinking about bringing plants back into the house and putting up storm windows. I notice fewer catbirds in the yard but hear white-throated sparrows. Raptors are on the move and I see skeins of Canada geese overhead, heading south. Soon I will be putting out more seed feeders and suet.

The "flowers" on the ornamental grasses are the
best they've been in years. (Margo D. Beller)

Yes, there are also the colorful autumn leaves that send people into their cars to drive north to Vermont or the Adirondacks or other such hotspots. In my yard the red leaves of the maple and the dogwood, the brown of the white oak, the yellow of the elms and the scarlet of the red oak will be very pretty, at least for a short while. And then the usual October winds will blow them off the trees to become that much more mess to be cleaned up. 

Yes, October is when things start falling out of trees.

This week, the summery days gave way to foggy, cool nights and my sleep has been continually interrupted by the sharp rap of oak acorns falling on the enclosed porch's roof. The squirrels are foraging in the trees by day, and by night the trees must figure it's time to spread some seeds all over the ground beneath them to perpetuate the species. 

The dropping does not cease. Sometimes, if the acorn hits a metal gutter, it can sound like a gunshot. Most of the time, however, it sounds like someone is banging into something in the night.

Two types of nuts falling from my trees. (Margo D. Beller)

Despite the noise I am glad I have this roof over my porch. I have friends with open decks who are forced to huddle under the picnic table umbrella as acorn bombs drop from the sky. When my in-laws lived in New Jersey the big oak next to the driveway regularly pitted the old family sedan, making it look like it had been in a hail storm.

My problem is when the acorns make it hard to walk to the feeder pole or the water dish. That is why I have gone out on the patio three times - so far - to herd marble-like oak acorns with my broom into my large garden pail, lug it to a corner of my yard and dump it for any squirrel, chipmunk, deer, woodpecker, jay or crow that might want a snack.

But there are many, many more acorns all over the lawn, and even when I am drinking coffee on the porch, congratulating myself on a job well done, I hear the acorns continuing to drop. It will be like this for weeks.

What hangs up will eventually come down. (Margo D. Beller)

It is not the tree's fault, of course. It is just trying to survive. If the trees were in the woods this would be a barely noticed process. But these trees are not in the woods, they border the property of my suburban yard. And so I notice big time.

There are some years when there are many more acorns than there are squirrels, like this year. There are some years there are many more squirrels than there are acorns, like last year. This boom and bust is not as random as it may seem.

Acorns are seeds and they are dropped by the oaks to make more trees. But the seeds are also food. The more food there is, the more an animal eats and then the more it breeds. More animals mean more food is needed. When seeds are plentiful, everyone is happy - the animals and the trees. But if there are too many animals and not enough seeds, there will be a decrease in new trees. That seems to prompt trees to shut down making seeds, which then cuts back on the animal population because there is less food.

The technical name for this boom and bust cycling is masting. According to the New Jersey Conservation Foundation, mast is the fruit of forest trees, in this case acorns. During "mast" years, the trees "go into overdrive, producing enormous amounts of nuts." Then comes the bust, a year or more when there are very few nuts produced.

How the pretty autumn leaves will eventually end up...
(Margo D. Beller)

Why does this happen? Again, from the Foundation:

Scientists don’t know the exact trigger for mast years, but it most likely has to do with climate events in past stressful years. Trees may produce an abundance of offspring as a hedge in case the stressful times continue. Stressors may include droughts, heat waves, or cold spells.

I'm no scientist but I know there is a lot of wacky stuff going on in the atmosphere around the world - a rare tropical storm in California, abundant wildfires in Canada, deadly floods in Libya. We are on pace to have the hottest year on record after having the hottest past few months on record.

... and the pods. (Margo D. Beller)

Closer to home, this has been a very wet year. The same abundance of rain that has helped keep my dogwood tree alive, produced the "flowers" on my ornamental grasses for the first time in years and kept the spider mites and white flies off my flowers likely produced favorable conditions for the oak trees to produce acorns after a year when not many were produced. The old trees have grown and now more of their branches are above the porch roof, something I didn't notice until the acorns started raining down heavier than usual this year. 

The oaks are not alone, of course. Many other trees are now dropping their seeds, including the bane of my existence, the black locust. October is when I notice how many of the long, black pods are hanging, waiting for some signal or gust of wind to drop like a blanket over my lawn. Like the acorns, eventually they will all come down and be swept away, to be forgotten until the next October. 

Nuts (and Pods) to You

Last week, as is my habit at this time of year, I spent two hours one day raking locust pods off my front lawn to the curb. Raking pods is my least favorite garden chore, worse than turning the compost pile (which I don't do every year), worse than cutting back the dried ornamental grasses in the spring, worse than replacing fence posts and deer netting. But I feel compelled to do it, with or without MH.

Acorns on lawn (Margo D. Beller)

Pods are ugly to look at, heavy to rake when enough of them are put together and have a sickly sweet smell. My leaf blower isn't strong enough to move them and I am not buying or renting one of those hurricane-strength fans I see others rolling along to blow leaves and what-not clear across the street. So I must rake them. Pods are good for nothing except feeding some of the birds (I've seen woodpeckers whacking them to get at the seeds) and making more locust trees. If left alone I would have a forest where the lawn is now.

Each year I wish I knew who came up with the idea of planting locust trees so I could punch that person in the nose.

I don't mind raking the falling leaves. I find it a calming activity when the day is sunny, the wind is light and the birds are singing. My rake is quiet compared to the electric blower and I enjoy the time outside. But in the years when the one female locust tree on my property is fruitful, it is literally and figuratively a pain. (I have discovered that, like many plants, there are separate male and female locust trees. Of the four on my property, three are males that do not produce pods. All are town trees I can't cut down and replace.)

Another thing I have in excess this year: Acorns. The oak and elm trees are having a boom, or mast, year - same as the locust. For weeks the squirrels have been running along the tree branches after the nuts. As they go for one they drop five more. As they were with the apples, they are sloppy eaters. Acorn caps they tear off and pieces of the nuts they are gnawing on fall from the trees, whose long branches hang above my enclosed porch's roof and the patio. At dawn and dusk you can hear the loud "thwack" as the falling nut hits porch roof and bounces down to the patio, usually just in front of the back door. It has become so bad I must wear hard-soled shoes or slippers or I'll step on something and hurt my foot. I've been sweeping or kicking nuts away from where I walk with the bird feeders. It is particularly bad after a heavy rain or wind storm.

Trees overhanging porch roof (Margo D. Beller)

If I left the acorns on the lawn, perhaps the squirrels would eventually come get them to cache for the winter. But I do not want to wait that long for the same reason I don't want the locust pods sitting on the lawn.

Like the pods, acorns feed certain birds (jays, woodpeckers) plus deer, bear, squirrels and chipmunks. At this time of year I am likely to find deep holes in the lawn and next to certain plants behind the deer netting as the critters cache their acorns for winter or rob another's cache. I have found tree saplings in the spring where such caches have been forgotten.

In boom years, the increase in food fuels larger families of the eaters. In turn, more of those eaters, such as squirrels or chipmunks, become more food for those that eat them, such as raptors. This can also have a big effect on which birds I see this winter both at my feeder and elsewhere. For instance, according to the annual winter finch forecast out of Toronto, the pine and spruce trees there have been so prolific there is plenty of seed for the evening grosbeaks, white and red crossbills and redpolls, among others, which means they won't be heading south to the U.S. for food this winter. No purple finches at the feeder this winter.

Pods on the grass, alas (Margo D. Beller)

After the boom comes the bust. Somehow, by a process botanists are still not sure they understand, the trees "communicate" with each other and will coordinate their mast. Boom years create more nuts and create more trees, even with the squirrels, etc. Then come the bust years when the trees produce fewer nuts as a way of  regulating the populations of trees and feeders so we're not overrun with either.

Weather may also be a factor. In my area we had a lot of rain this spring, which might have contributed to the seed boom. In past, drier years, there have been fewer nuts or pods produced as the tree focuses on taking care of itself.

But that is not this year's situation. At some point, the acorns will be done. Today, after the town took away the leaves and pods at the curb, I looked out my office window and can see plenty of locust pods still hanging in the tree. They'll be down after the next storm. It is as regular as the sun rising in the east.