Shorebird migration: good news on Red Knots at Brig?

The lives of us Hidden New Jerseyans get complicated this time of year. There are always festivals, great events at historic sites and more opportunities for us to make friends within the conservation community. And spring migration gives us limited chances to see birds decked out in their finest plumage on their way to their mating territory. Even the birds that raise families in New Jersey get frustratingly hard to see as they settle down and build nests in trees whose branches have suddenly become so leafy they obscure anything within.

This larger-than-life representation of a Red Knot
memorializes Moonbird, who's been commuting
via the Delaware Bayshore for 20 years (and we hope still is!).

And then, there are the Red Knots. You might remember them from our story last year. They're the endangered shorebirds that make a pit stop on the Delaware Bayshore enroute from their winter homes in Argentina and Chile to their summer breeding grounds in Arctic Canada. The window to see them is pretty darned small: generally a few weeks or less in May and June, after the horseshoe crabs have come out of the water to lay their eggs on the shore. Knots take advantage of that ever-reliable cycle to fatten up before flying the final leg of their 9000+ mile journey.

Similarly, scientists flock to the Bayshore in large numbers this time of year to assess the health of the Red Knot population and its potential for growth. The fate of the species and the horseshoe crab are obviously intertwined, and efforts to bolster the crab population will have a major impact on these amazing travelers.

Given other obligations, we didn't have the luxury of journeying to the Bayshore on a May weekend, as much as we would have liked. And given that Memorial Day came so early this year, there was no way we were going to go as far south as the Cape May County peninsula. Instead, we took our chances with Forsythe NWR, a.k.a. Brig, figuring we'd be able to see at least some of the shorebirds we needed to bolster our year lists.

Still, I was hoping that a Red Knot or two would be in the mix. Considering how many warblers we'd missed seeing in New Jersey this spring, it seemed the fates owed us a treat.

As we started our drive along the eight-mile Wildlife Drive atop the impoundment berm, we noted that the tide was out, leaving broad expanses of mud between large islands of marsh grass. Normally conditions like that leave a lot to be desired; a bit more water would concentrate the birds into a smaller area of drier ground. As we scanned broad swaths of mud, we considered the possibility we'd have to do a second sweep a few hours later, once the tide had come in.

Still, though, we were finding occasional groups of shorebirds as we drove further along. Small Sandpipers and the occasional Willets gave us hope that we'd at least see something on our first go 'round.

Then we heard the ruckus. A pebbly expanse just past the grassy shoulder of the berm was alive with birds busily pecking in the dirt for their mid-morning meal. The noise was extreme as dozens of Ruddy Turnstones pecked and dug and, well, turned stones to search for their meal. A couple of sizeable horseshoe crab shells stood motionless nearby, sending the silent message that yes, in fact, there might just be some eggs there, fairly far from the oceanfront. This was a gathering well worth leaving the car to investigate.

Like bargain-seekers at the discount table, Turnstones pushed Sandpipers and their breed brethren aside to get a better angle on the possible horseshoe crab egg bonanza just below the surface. They were fun to watch, but both Ivan and I had the feeling a good surprise could be there for us, too. Scanning the group, I decided to get a bit closer to see if I could spy the birds that were so close to the berm they were obscured by grass. And, I saw... yes....

A Red Knot! Milling among the Turnstones, the sole bird of its kind plucked its way through the stones and sand for a good meal. While the Knot was a singleton, it looked rather healthy and plump, as if it might have been chowing down for a good couple of days. Forsythe isn't generally known as the place to go to see Red Knots, being on the Atlantic Coast rather than the Bayshore, but at least one decided to grace us with its presence.

As we later discovered when checking in with the Conserve Wildlife folks who keep track of such things, this year's count of migrants to the Delaware Bayshore has been especially good. That got me thinking about how our Red Knot found his way to a beach within viewing distance of Atlantic City. It's always possible that this single individual got a little confused or misplaced from the flock that usually ends up farther south and west, but I'd personally like to think that he's the harbinger, maybe the trendy guy who thinks he discovered the next great place for migrating Red Knots to spend their brief but meaningful Jersey Shore vacation.

Yes, I'll admit I'm anthropomorphizing, but we can always hope that these small but mighty shorebirds will become so abundant that they'll need to stretch out a bit when they visit here in future migrations. Would it be the worst thing for Red Knots to visit AC every once in a while?

Reaching Delaware without the toll: the odd case of Kilcohook

Is it wrong for a loyal Jerseyperson to want to invade Delaware?

I'm not talking about the whole state, just the part you can walk to from New Jersey, toll free.

Yup, you read that correctly: we share a two mile land border with the Blue Hen State. Most maps don't do much to point it out, but a small sliver of land next to Finns Point National Cemetery in Salem County is technically part of Delaware.

To understand how New Jersey got cheated out of the acreage, we have to go back more than 260 years and beyond the peninsula that, by all rights, should be all Garden State.

First off, you'll note that the upper portion of Delaware forms an arc. It was originally drawn in a 12 mile radius from New Castle, as directed in a deed granted by the Duke of York to William Penn in 1682. The arc stopped at the low water mark on the New Jersey shoreline because the Duke had already granted the land beyond to John Berkeley, Lord of Stratton, in 1664. It's kind of an odd situation, as our other nautical borders are determined either by the center of the body of water, or the lowest elevation of the waterway.

So if the arc ends at the low water line where Berkeley's grant starts, then why does a two-mile long stretch of the New Jersey/Delaware boundary sit on dry land?

Sometime in the early 1900s, the Army Corps of Engineers started dredging the Delaware River to improve navigation up to the Port of Philadelphia. They had to put the dredge spoils somewhere, and apparently the remote, undeveloped coastline at Pennsville seemed a good option. The vast majority of human neighbors are already six feet under at Finns Point, and they weren't complaining.

The new land grew over the years, with about 580 acres of it rising above the low-water mark to become defacto Delaware territory. In 1934, President Franklin Roosevelt designated the full 1400+ acres as the Kilcohook Wildlife Refuge, a pitstop for migratory waterfowl like pintail ducks and teal. Eventually, though, continued dumping drove away avian visitors, and the plot was transferred to the Army Corps as a "coordination area" in 1998. Fortunately for the birds, the existing land to the east was designated the "Goose Pond Addition" to Kilcohook in 1961, later becoming Supawna Meadows National Wildlife Refuge.

New Jersey has taken Delaware to court over the boundary issue three times in the past century. In the 2007 dispute, Trenton legislators even light-heartedly considered sending the Battleship New Jersey to defend the territory. All three cases went to the Supreme Court, which ruled against us every time. (The two dissenting justices in the 2007 decision, Scalia and Alito, were born in Trenton, though their provenance seems to have had nothing to do with their opinions.). None of those decisions, however, specifically involved the dredge spoils area, whose jurisdiction remained a local issue.

As you can imagine, policing the area can be problematic. The Army Corps claims no responsibility, and technically, the Pennsville police had no jurisdiction. The spot was a magnet for mischief for partiers and a de-facto chop shop for car thieves. They knew the chances of being arrested and prosecuted were slim. When local law enforcement called the Delaware State Police to handle incidents on the acreage, it took troopers an hour to get there.

Finally, in 1989, the Delaware secretary of state agreed that this small slice of the First State could, indeed, be subject to New Jersey law. Pennsville police can now enter the territory to keep the peace and investigate wrongdoing. But I still wonder if they could get me for crossing the boundary and declaring the land to be the dominion of Nova Caesaria. Not that I would ever actually do it.

Owl be seeing you in all the old, familiar places...

Our recent report on duck spotting at Barnegat Light indicated that winter birding is not for the faint of heart. Persistent (and well-insulated) explorers should discover, though, that hanging around in the cold and wind (and even snow) can have its reward in the sighting of species that reliably return to certain spots, year after year.

Take, for example, the Short-eared owl. Habitues of open grasslands, some of these moderate sized raptors spend their winters at the Wallkill River National Wildlife Refuge in Sussex County. A viewing deck at the state border with New York provides a good spot to gather with other hearty souls late on a January afternoon, waiting for the sun to drop below the surrounding hills so the show can begin.

My first visit to Wallkill a few years ago set an unrealistic expectation of the relative difficulty of spotting owls. Ivan took me to see the owls just after we'd met, telling me that the odds were good that we'd see at least one in the field, and I came away thinking that either it was pretty easy, or he was some sort of bird conjurer. Basically, we drove up, he set up a viewing scope on the platform, and within 10 minutes, he found the owl in question perched on a slim stump about 50 yards away. He invited me to take a look, and not only was the bird there, but as if on cue, it turned to look directly at me. If I didn't know better, I'd have thought Ivan had stopped by earlier to plant a mechanical decoy in the field.

Most of the time, spotting the birds isn't as easy as that. It takes time, patience and a touch of fortitude.

• Time and patience: like most members of its taxonomic family, the short-eared owl hunts largely in darkness. The key is to get to the appropriate viewing site just before dusk, wait and hope they decide to show.
• Fortitude: well, try standing in an open grassland field at dusk in January. It's windy, and you're often left to stand on snow pack whose chill permeates the thickest of boot soles. Before long, no matter how many layers you're already wearing, you start regretting not having the forethought for electric socks and that extra set of thermal underwear.

The Short-eared owl.

This time around, it was plenty cold, but the inevitable wait was tempered by the pre-game show. A sole adult Bald eagle scared up a massive flock of grounded Canada geese in the field across the road, the geese apparently not realizing that the chances of one eagle killing them all was rather remote.

Not long afterward, the show started on our side of the road as a host of Northern harriers glided effortlessly above the tall grass. A little longer yet less bulky than the Short-eared owl, the harrier's face is somewhat disc-shaped like an owl's, though the two aren't related. Among the many brown females we witnessed skimming and diving around the field, a striking "gray ghost" male harrier flew around the territory like a mysterious spectre.

As we stomped our feet to keep warm, local birders told us that during the week, when fewer people are there to observe, up to a dozen Short-eared owls were known to come out to hunt. They had good reason, too: according to management at Wallkill, conditions over the summer resulted in what's described as a bumper crop of rodents, the prey of choice for owls and harriers alike.

The evening we were there, they started a little later than their customary 4:45 flight time. Suddenly, as light was draining from the sky, we noticed other forms among the many harriers patrolling the field. The new visitors had stiffer wingbeats and bulkier wings. It took a few minutes, but I started to be able to differentiate the two types of birds from their flight patterns and relative size. I didn't get a firm count of owls, but it was clear that several had felt comfortable enough to fly within view of us humans. The show was definitely on!

Chilled to the bone and satisfied we'd met our goal for the trip, we started toward the car to warm up, but one owl seemed not quite ready for us to leave. It approached, soaring higher as if to get a view of us from above, and maybe to confirm to us that we had, indeed, seen what we thought we'd seen. Even in the waning light, we could see its distinctive under-wing pattern as it flew directly overhead. With that parting adieu, we left, happy that our frigid vigil had paid off.