Showing posts with label piping plover. Show all posts
Showing posts with label piping plover. Show all posts

Tuesday, April 22, 2014

Visiting our favorite Easter Peeps*: the Piping plovers

Easter seemed like the perfect day for a trip to Sandy Hook for the annual nesting season of the Piping plover. It was a beautiful day, breezes on the shore were soft and reasonably warm, and, well, who doesn't like a good Peep?

These impossibly cute shorebirds return to New Jersey every spring to mate and raise their young, and Sandy Hook is one of their favorite breeding spots. In fact, they were the mascots, of sorts, of New Jersey Audubon's late, great Sandy Hook Bird Observatory, which used to sell t-shirts emblazoned with the plover. (As an aside, the shirt was a great conversation starter in Hawaii, scoring me a few pointers for locating the endangered Nene goose.)

Piping Plover adult. U.S. Geological Survey/photo by Susan Haig.
Besides their overall loveableness, Piping plovers deserve our regard as a federally threatened species, with fewer than 2000 breeding pairs in the Atlantic population. Over-development along the shoreline and indiscriminate human behavior on the beach are among the biggest perils to these little guys, so state and federal parks are usually the best places to find them. It's always good to see them return in the spring, and every successful brood is cause for celebration.

The top of the hook -- North Beach and above -- is generally a reliable place to find the plovers, which means a hike along Fisherman's Trail. It's a good workout, tromping a sandy path over small dunes and mounds that shift below your feet. Who needs the gym?

Neither Ivan nor I had been to the end of the trail since Hurricane Sandy came through, but the beach seemed to be in pretty decent shape. Inland from the water's edge, a wide expanse of sand was cordoned off for the explicit use of nesting protected birds. As always, a variety of gulls was making their presence known in the sky above and on the beach. American oystercatchers were easy to find, their orange bills and dark backs and heads contrasting nicely with the sand.

The plovers, not so much.

Imagine trying to find a tiny bird, the color of wet sand with some white thrown in, on a damp beach strewn with shell shards. It ain't easy. On the plus side, it gives you a real respect for the power of camouflage. But you're left scanning yards and yards of what looks like empty beach, hoping to detect some movement that's not a stray piece of paper or plastic fluttering in the breeze.

Some knowledge of their habits helped us eliminate part of the beach right off the bat. We figured they'd make themselves scarce among the gulls and oystercatchers, both of which are known to dine on plover eggs and chicks. Passing a good stretch of sand, we got to some yardage seemingly free of all life but for random dune grass in the distance. And then... there was movement.

They weren't easy to focus on, but about a half dozen plovers were rushing among the beach detritus, looking like house hunters power-walking to the next real estate listing. We felt reasonably sure they were still checking out neighborhoods, because the usual unmistakable signs of nesting weren't yet there.

The thing about Piping plovers is that depending on the time of season, the nests can either be near impossible to locate, or darn easy. Unlike the construction of twigs or grass that most birds generally use, plovers' nests are pretty much just uncushioned scrapes in the ground, their mottled tan and white eggs laying in a slight depression that might be decorated with shells or pebbles as camo. That makes them almost invisible. If the area wasn't cordoned off, folks might mistakenly step on a nest without realizing it.

Ironically, it's the benign hand of man that makes the nests easy for birders to find. On Sandy Hook, for example, the National Park Service reserves parts of ocean-facing beaches with regulations and signage to keep the birds from being harassed. The dunes are roped off from March 15 through Labor Day, and visitors are reminded that dogs are allowed only on the bay-facing beaches, where the plovers don't nest.

If you wait long enough in the season, your search for Piping plovers is aided by the large chicken-wire structures the Park Service erects around the nests the birds create on the beach. The holes in these exclosures are large enough to allow the plovers to leave easily to forage for food, while being too small to allow predators in. Raccoons, cats, skunks and foxes are all known to go for plover eggs and chicks.

Piping plovers generally lay clutches of two to four eggs, which hatch in about 25 days. Born with pinfeathers, the chicks are mobile almost immediately and will follow their parents around as they graze for food. In about another month, the youngsters will be ready to fly, provided they survive predation. Parents will feign a broken wing to distract predators from the nest, as the little ones lay motionless in the sand, nearly invisible thanks to their camouflage. That's not to say that Piping plovers won't stand up for themselves. Other birds who approach the nest will be chased, bitten or pecked, possibly leaving an enduring injury.

Like us humans, plovers are generally off the beach by the middle of September. They often gather in groups in quiet staging areas before heading south to the gulfshore and beyond. For now, though, they're counting on us to share the beach with them as they start another generation of adorable birds.


*Technically, Piping plovers aren't included among the shorebirds generally categorized as "peeps" by birders. Those would be a certain group of Sandpipers. I just couldn't resist the Marshmallow Peeps reference.

Thursday, May 26, 2011

Eider way, it was a productive morning

This past weekend's Sandy Hook jaunt was one of our classic birding/history mixed trips. Ivan had heard about a rare sighting of a male king eider in full breeding plumage at the north end of the hook, and the National Park Service was running its annual Coastal Defenses Day at Fort Hancock.

Given how exhausted we were after the South Jersey jaunt, and the overcast outside, we got a bit of a late start, but fortunately that doesn't really matter when it comes to shore birds. When we got to our destination, we stopped first at New Jersey Audubon's Sandy Hook Bird Observatory to check the log for sightings. Was the eider still around? Apparently he was still somewhere at the end of the Fisherman's Trail, but according to another birder, there "wasn't much else." Well, one person's feast is another's famine. Off we went to determine what our own menu for the day would become.

The Fisherman's Trail is at the very northern tip of the hook, accessible from the parking lot just to the west of the Nine Gun Battery. It winds past the small and decaying Battery Peck and the adjacent hawk watching deck (funny how they watch birds from Peck, don't you think?), and then through the dunes to the shore. It's very sandy, with no firm base below, which means you're essentially spending about 15 minutes wading along with things shifting below your feet. It's not an easy walk, but it beats having to do the stairmaster at the gym.

At the end of the path, you're rewarded with a broad beach littered with all sorts of flotsam, from driftwood to whatever plastic trash happened to find its way there. Substantial parts of the beach dunes are blocked off for the endangered piping plovers to nest, and the occasional human-built enclosures mark where some of them have chosen to raise their young. They're great little shorebirds, and as Ivan noted, they're pretty high up on the cuteness scale. Seeing them on the beach is always such a treat.

The top of the hook isn't a bathing beach -- it's far too much work to get there -- but plenty of sport fishers will make the hike for a good catch. Just off the coast, plenty of fishing boats large and small anchor for a few hours, and the buoys marking the shipping channels are visible. On a good day, you can see Brooklyn and Staten Island along with the connecting Verrazano Narrows Bridge. In really clear weather, you might even be able to see a hint of lower Manhattan in the distance. Sunday, though was overcast and even a little foggy. Not a great day for sightseeing.

We came upon a birder carrying a scope and tripod, returning from his walk. He told us that he'd seen two eiders just out of view of where we were then standing. Ah, good news! We walked along the beach looking for the elusive fowl both on the sand and in the water; an online report had included a photo of him nestled comfortably on the beach, so it was quite possible he could be anywhere.

Alas, though, we were not destined to meet the king eider on this trip. It's the way it sometimes goes: you don't always see what you came to see, but you often still see something very worthwhile.

For me, it was another view of one of my favorites, the black skimmer. They tend to fly in flocks and then rest on the beach almost in formation. To me they look like airplanes parked on the tarmac, just waiting for their next flight. And of course, it's always fun to watch the smaller shorebirds dart their beaks into the sand for food, and then run quickly as the tide washes in.

Looking through the grounded birds, Ivan noticed a couple of red knots, glad to see a few of this rapidly decreasing species. Maybe we didn't see the eider, but perhaps the knots were just as good, if not better. The birder at the Audubon office was wrong: there was 'much' out there.