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Showing posts with the label migration

Letting Go of the Curlew

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Eskimo Curlews, as painted by John James Audubon in the early 1800s. From Oak Harbor, Ohio, Kenn writes: Fifty years ago today, on Sept. 4, 1963, an Eskimo Curlew was shot on the island of Barbados. Many migratory shorebirds were shot every fall on islands in the Lesser Antilles. It was almost a fluke that this small curlew was recognized as something unusual and that the specimen was given, many months later, to an ornithologist from Philadelphia. And in another fluke, as a little kid and beginning birder, I heard about this only two years after the curlew was shot. I had joined the National Audubon Society at the age of nine, since it was the only bird group that I'd heard of, and one of my very first issues of Audubon Magazine carried the sad news about the curlew.  At that point the Eskimo Curlew was already a bird of legend. It had been abundant at one time, migrating north through the Great Plains in spring, nesting in the Canadian Arctic, migrating out over the Atl...

Snowbird 2.0

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American Tree Sparrow: Always at home in the snow. From Oak Harbor, Ohio, Kenn writes:  When I was a kid, first learning about birds, I read that "snowbird" was the Dark-eyed Junco's nickname.  Juncos are easy to recognize, and for many people in the eastern U.S., they are characteristic birds of winter.  But for me, the real "snowbirds" are American Tree Sparrows.  Strictly winter birds anywhere south of the Arctic, they arrive with cold weather, and they visit Kimberly and me only when the snow flies.   American Tree Sparrows belong to the genus Spizella, which makes them relatives of familiar birds like Chipping Sparrow and Field Sparrow.  The main difference is that Tree Sparrows have their center of distribution at least a thousand miles farther north.  Indeed, "Tree Sparrow" is a misnomer:  many spend the summer far north of treeline, on the tundra, where the largest willows are only a couple of feet tall.  In winter, flocks r...

An ill wind threatens a world-class bird migration hotspot

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Kirtland's Warbler: North America's rarest songbird species. The only known consistent stopover area  for this bird during its migration is in northwestern Ohio - the area now being threatened by wind power development. From Oak Harbor, Ohio, Kenn writes:  Our book tour of New England was wonderful, but it was cut short by the approach of Superstorm Sandy.  We had to cancel our last appearances on October 29 and 30, and since all flights were cancelled as well, we drove our rental car back to Ohio through the rain and high winds, arriving safely at home on the 30th.  Once there, however, we were dealing with an ill wind of another kind.  As many of you will know already, Black Swamp Bird Observatory (BSBO) has been leading an attempt to stop construction of a large wind turbine at the Camp Perry Air National Guard Station, on the Lake Erie shore in the heart of Ohio's premier bird migration hotspot of Magee Marsh / Crane Creek / Ottawa NWR. This is t...

Special K

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Kirtland's Warbler: the rarest songbird in North America From Oak Harbor, Ohio, Kenn writes: In my previous post on May 30, I mentioned that I'd been making predictions for the migration throughout the Biggest Week In American Birding: checking to see what birds were around, watching the weather reports, trying to predict which days would have the biggest arrivals of migrants. For the first 8 days of the event, this was an exercise in mild frustration, because the weather patterns just weren’t lining up to produce any major migrant wave. We were seeing excellent diversity of migrants -- and the guides from Tropical Birding were making sure that everyone on the scene got to see a lot of different species. But the kind of day that we dream about in northwest Ohio, with migrants everywhere, the trees filled to bursting with warblers and others, just had not happened yet as late as Thursday, May 13. Based on the weather forecasts, I had been predicting for days that Friday, May 1...

Whitewater

From the far side of the rapids, Kenn writes: We screen the comments that come in before they’re posted on the blog. Most of the comments are wonderful, all are appreciated, and we post almost all of them. One that we didn’t post came in from "Anonymous" a couple of weeks ago -- taking us to task for the fact that we hadn’t updated the blog since April 10th. "Why bother to have a blog, there in the ‘warbler capital of the world,’ if you never post to it?" It went on to imply that we must be pretty lazy, or worse, to fail to keep the blog rolling. Gee, "Anonymous," we’re glad that you missed us. A lot has been going on here. The best analogy that comes to mind is that being here in northwestern Ohio in May is like a modified version of whitewater rafting. But instead of roaring down the river, the raft is tethered to one spot, bucking and pitching wildly while the whitewater rapids of spring migration come pouring around and under and over those of us who ...

Riding the Edge of Winter

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From Oak Harbor, Ohio, Kenn writes: In fall, most birds migrate south before they would have to. Most migratory birds in North America leave their northern nesting grounds and start southward long before the weather begins to turn bad, long before the food supply begins to dwindle. The birds apparently are keyed to changes in the length of the day, not to local conditions, so they fly away from their summer homes while resources are still abundant. But there are exceptions. Not surprisingly, one of the exceptions is the surprising Sandhill Crane. Cranes are different from most birds in the nature of their migration anyway: their routes are learned, not instinctive. A baby Indigo Bunting, to cite an example of a typical migrant, is born with an instinct to migrate to Central America in fall without any help. A baby Sandhill Crane is born with an instinct to follow its parents in the fall. Cranes learn their routes and their stopover sites and their wintering sites, and they can change ...

Endless Spring

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Summer? Says who? For this White-rumped Sandpiper, this is still the season of spring migration. From the middle of a flooded field in northern Ohio, Kenn writes: After a totally crazy month, the calendar has just clicked over from May -- we call it May-hem around here -- to June. So what season is it now? If you’re a White-rumped Sandpiper, it’s still spring, still the height of northward migration season. Of course, if you’re a White-rumped Sandpiper, you’re probably not reading this blog. If you’re a sandpiper, you’re too busy to read things like this. Especially if you’re a White-rumped. More than three dozen different species of sandpipers are found regularly in North America; all of them are at least somewhat migratory. None of them migrates north later in spring, on average, than the White-rump. This bird has a lot of distance to cover. Its wintering sites are all in southern South America, including some as far south as the tip of the continent -- or even farther: this amazin...

Warblers On The Brain

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A Black-throated Green Warbler pauses in northwest Ohio, along with a few hundred thousand of his fellow warblers From Oak Harbler, Ohio, Kenn writes: See that typo? I’ve done that dozens of times recently. We’re actually located in Oak HARBOR. But for the last three weeks, whenever my fingers type the letters A - R - B, autopilot takes over and finishes the word with L - E - R. It’s that time of year. It’s warbler season. More than 50 species of warblers occur north of the Mexican border, and many of them are abundant, but most people never notice them at all. Because the warblers are tiny, hyperactive, and fond of hiding among dense foliage, they simply escape the attention of the uninitiated. For the average citizen, warblers exist only as the occasional flit of yellow between the treetops, not enough even to register on the conscious mind. But for those who have discovered birds, warblers are magical creatures, a dizzying galaxy of feathered delights. A male Bay-breasted Warbler,...

Fabulous IMBD Weekend at Magee

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Cape May Warbler: named for Cape May, NJ, but in spring it's far more numerous at Magee Marsh From Oak Harbor, Ohio, Kenn writes: For a few weeks every year, northwest Ohio -- and specifically the Magee Marsh Wildlife Area, which is practically our back yard -- becomes one of the most popular birding sites in the world. Literally thousands of birders come here to witness the warblers and other migrants that concentrate in the woods along the Lake Erie shoreline at Magee and nearby sites. The action peaks on International Migratory Bird Day (IMBD), the second Saturday in May. This year the timing worked out perfectly, with a huge arrival of birds obvious on the morning of Friday, May 8th. The variety of birds in the area was even better on Saturday, and continued to be outstanding through Sunday and Monday. I seriously doubt that any of the thousands of visiting birders went away disappointed. The Black Swamp Bird Observatory (BSBO) -- where Kim is Executive Director, and I’m a vol...

The Finch Forecaster

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From northern Ohio, Kenn writes: This Common Redpoll was outside our window a year ago, in December 2007. It was one of dozens that came to our feeder that month, and one of hundreds that we saw in the general area. This month, we haven’t seen a single one. Redpolls are in the "winter finch" group, and they were the headliners last year. Common Redpolls (and a few of their pale high-Arctic relatives, Hoary Redpolls) were all over the central and eastern U.S. and southern Canada in the winter of 2007-2008. Pine Grosbeaks also moved south in good numbers. So did Red-breasted Nuthatches and Bohemian Waxwings, which are not finches but which are similarly erratic in their winter occurrences. We used to talk about winter finch invasions being "unpredictable," but that’s not accurate. These invasions are caused by changes in the supply of natural wild food in the boreal forest of Canada and Alaska, and if we knew enough about what was happening there, we could make pred...

Keep on Rockin in the Bird World!

From backstage : ) Kim writes: I wanted to add a bit to Kenn's post about our Friday night gig. The funkiest, most far-out part about our band is the way we came together and got this community ROCKED on to the fact that birds are a major driver of ecotourism dollars in northwest Ohio. Get this. In addition to me and Kenn, our 6-7-8-OH Band members include: On drums - Larry Fletcher, Director of the Ottawa County Visitors' Bureau; On rhythm guitar and vocals - Bob Hille, Ottawa County Treasurer; On rhythm guitar, keyboards, and vocals - Ron Miller, Lake Erie Vacation Rentals; On lead guitar - (and layin it DOWN, brotha), Pat Sullivan, a local entrepreneur How we all came together is a trip. Last spring I launched the “BSBO Business Alliance” initiative. For the most part, the local business community had no idea of the numbers of birders that are starting to pour into our Magee Marsh / Crane Creek area to witness the all-out binocular-burning migration sensation that pumps thr...

Happening Right Now: Crossbill Invasion

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From Birding Central, Kenn writes: In the northeastern quadrant of the U.S. and adjacent southern Canada, this is shaping up to be a huge winter for northern invaders. I’ve written already about Pine Siskins invading southward, and that push is continuing, with flocks reported all over the east. Northern Shrikes have appeared in unusual numbers, and so have Snowy Owls, with many around southeastern Canada and the Midwest. Flocks of Evening Grosbeaks have put in brief appearances in several places. Now, just within the last few days, flocks of White-winged Crossbills have set the hotlines buzzing all over Ohio. Of all the "winter finches," White-winged Crossbills are the most nomadic. They specialize on cones of spruces, hemlocks, and tamaracks, using their trademark crossed bill tips to pry open the cones and get to the seeds. The map here shows their overall range in North America -- but they are never present throughout this range at once. They concentrate where there are ...

Purple On The Rocks

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From northern Ohio, Kenn writes: Okay, the name of the "Purple" Sandpiper is an exaggeration. The feathers just have a faint purple sheen when they're freshly molted, all right? But these birds are impressive for deeper reasons than just their color. We were reminded of that during our day of birding the Lake Erie shoreline in blizzard conditions on Nov. 18. Kim already told you about our visit to Huron Harbor early in the day (see her post "Extreme Birding"). The highlight of the afternoon came at Headlands Beach State Park, east of Cleveland, where we found two Purple Sandpipers along the breakwater. The Purple Sandpiper is an incredibly tough creature. Its nesting range straddles the Arctic Circle in eastern Canada, mostly in areas that few birders ever visit. It stays in that freezing Arctic climate until very late in the fall. Then it just comes south to the colder regions of the Atlantic Coast, where it spends the winter scrambling around on coastal rocks...

The Raptors Are Coming

From Cape May, New Jersey, Kenn writes: Now is the season when birds of prey, or raptors – the hawks, falcons, eagles, and their fellow-travelers, the vultures – are migrating south. For the most part, these birds move on a broad front, spread across the landscape, and we don’t notice them in big numbers except in a few places where they’re concentrated by geography. But there are a few favored spots where the hawks follow ridges or shorelines and where huge numbers can be seen under the right weather conditions. Cape May, New Jersey, is one of the best such concentration points north of the Mexican border. The entire southern one-third of New Jersey is a peninsula, of course, and at Cape May it narrows to a point just a few miles across. During their fall migration, especially when winds are from the northwest, raptors will move south along the outer coast of New Jersey. When they get to the tip of Cape May Point they face a quandary, because most of them are reluctant to cross the o...

Invasion of the Thistle Snatchers

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From Oak Harbor, Ohio, Kenn writes: The title from this post came from an e-mail we got yesterday, passed along from a naturalist at a nature center farther east in Ohio. Thistle snatchers -- yeah, they're talking about Pine Siskins. These sturdy little nomads have been showing up all over the place, little flocks bouncing around the fields and woodland edges all over the Midwest. I wrote about these birds back on October 14th -- see that post for more info. It doesn't look like it at first glance, but the Pine Siskin is closely related to the American Goldfinch. In my Kaufman Field Guide to Birds of North America , I described it as looking "like a goldfinch in camouflage." And like the goldfinch, it's a major seed-eater. It likes the seeds of wild thistles, but it will come to bird feeders (often in the company of goldfinches) to eat Nyjer seed, which is often marketed as "thistle seed." One thing you'll notice, if you get siskins at your feeder, ...

Siskin Attack!

From Oak Harbor, Ohio, Kenn writes: I heard it this morning, high overhead, a sound that I'd been waiting for. Distant but unmistakable, a mix of querulous rising notes and dry rattles. Scanning the sky, I picked up a flock of half a dozen small, short-tailed birds, in high, bounding flight. Yes, they were Pine Siskins, all right. Every fall, birders over much of the U.S. and Canada keep an ear toward the sky, listening for the calls of "winter finches" flying overhead. The "winter finches" are a group of about nine species that nest in the far north or in high mountains and that are mostly vegetarian in their diet: they eat seeds, buds, berries, but relatively few insects, unlike most other songbirds. These "winter finches" are extremely variable in their winter distribution. If there's a good supply of food in their nesting range -- a good cone crop on the spruces, for example, or lots of seeds on the birches -- the finches may stay in the Arc...

BTB

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From Oak Harbor, Ohio, Kenn writes: It’s an awfully small bird to have such a big name. The Black-throated Blue Warbler is maybe five inches long from the tip of its bill to the end of its tail. It weighs less than an ounce, even when it’s fattened up for its biggest journey of the year, which is happening right now. This warbler is on its way south, and by this date in late September, most of its kind have already headed to more southerly latitudes. Birders and non-birders could be separated on the basis of their experience with warblers. Everyone has seen birds like geese, and everyone notices pelicans or eagles if they’re arround. But warblers are different: they mostly go unnoticed by most people, even while many birders regard them as favorites. North America has more than 50 kinds of warblers – small, active, colorful birds that flit among the leaves, feeding on insects. Most of them spend the winter in the tropics, coming north in a rush in spring, while birders rush out to lo...