Wednesday, December 17, 2014

Out for the Count

Cape May's birdwatchers have been out counting birds this week, all in the name of research. Last Sunday saw many of the nation's birdwatchers taking part in the 115th annual Christmas Bird Count (CBC), organized by the National Audubon Society and, as ever, there were surprises in store on the Cape May count. These counts don't set out to produce a precise count of every last bird in the area - that would be nigh on impossible. Rather, the figures collected over time provide us with an idea of long term trends; an indication as to whether species are increasing or decreasing. In addition, because winter bird populations can move around from year to year, and because the counts take place across the whole continent, any local changes that might be detected can be put into context. In other words, a localized drop in numbers for one species may not mean that it is declining; the species may simply be wintering somewhere else.

Such long-term trends are helping to produce valuable data - data that is based on sound information, rather than guess work. One bird that has been intriguing in its behavior so far this winter is Bonaparte's Gull. Despite being a regular, even common, wintering bird around the coastline of Cape May County, not a single Bonaparte's Gull was logged on the Cape May CBC - a surprise to everyone. Is this a local trend or a wider phenomenon? It will be interesting to review the results of all the 2014 Christmas counts once they are in and compare them with those of previous years. It seems very unlikely that the species has suddenly drastically declined, so what is going on?

But CBCs can produce surprising guest appearances as well as noticeable absences and this year's Cape May count was no exception. Not all results are in yet, but by the last count, some 160 species had been reported within the 15-mile diameter circle that makes up the Cape May count. Among these were certainly a few surprises; Ross's Goose, Cackling Goose, Eurasian Wigeon, Osprey, Northern Goshawk, Northern Bobwhite, Western Kingbird, Blue-headed Vireo, Pine Warbler, Vesper Sparrow and American Tree Sparrow were all nice bonus birds, while the Black-capped Chickadee that turned up last winter made it onto this year's count, constituting the first modern count record of the species. Top prize went to Michael O'Brien, who found a Magnolia Warbler lurking in the back streets of West Cape May - the first time the species has been recorded on a Cape May CBC.

While the Cape May CBC is, of course, dear to our hearts, there was another reason to be out counting with great anticipation this week - this year's Avalon Seawatch was fast approaching the magical one million birds mark for the season. That wonderful milestone was reached on Monday, when Skye Haas and Tom Reed watched a female Black Scoter break the tape and become the millionth bird counted so far. There has been much celebration and Skye has posted a great report on the moment on our Seasonal Research blog. But the season is not over yet and you still have a few more days to enjoy the often impressive spectacle of birds heading south along the barrier islands.

Bonaparte's Gulls have shown some interesting behavioral swings in 2014; while wintering birds have yet to appear at the back end of this year, birds in the early half of the year seemed reluctant to leave and first-year, non-breeding birds could still be found in South Jersey well into May. The above birds were photographed at East Point, Cumberland County and were part of a gathering of some 50 birds there on May 13th. Though no adults were present, even first-summer birds such as these would be expected to be north of our area well before this date [photo by Mike Crewe].

Tuesday, December 9, 2014

Avalon Awash

Tom Reed cut a lonely figure at the Avalon Seawatch today, as gusty Northerlies and a stormy sea added an extra dimension to the task of counting birds. Though such conditions sometimes create interesting birding opportunities, seabirds were pretty noticeable by their absence this morning and much of the offshore movements involved a variety of scoters, Common Eiders, Long-tailed Ducks and Common Loons scuttling for cover in Townsend's Inlet. Nearby sports fields held parties of Brant and roosting Herring Gulls, while Boat-tailed Grackles search the wrack lines for food - but the wrack lines were in the middle of the road!

A trip around the barrier islands around high tide on a Nor'easter certainly helps to demonstrate just how fragile our coastlines are and just how important it is to understand how these dynamic, natural systems work, such that we can protect both ourselves and the natural world to the best of our abilities. Certainly, the value of the wave-absorbing sand dunes along the coast was clear to see as rising waters washed right across Stone Harbor Point, leaving a scattering of beachgrass-topped, dune islands. Nummy's Island had an unfamiliar look too, as waves lapped at both sides of the road running across its middle. Many years ago, before we knew any better, the natural dunes at Cape May Point were deliberately removed, to allow the nouveau riche of the time to enjoy splendid views of the bay from their homes. After a number of disastrous floods - at least in part as a result of this beach removal - the dunes were replaced and the lesson learned.

The weather is likely to stay blustery for the next couple of days at least so it will be interesting to see what comes our way; with the Avalon Seawatch count hovering around 960,000 for the year, it would be nice if we can have a good run of birds over the coming week and see the magical one million figure reached - we'll keep you posted!

The 8th Avenue jetty was completely submerged at high tide today, with just the post at the far end sticking out of the turbulent waters [photo by Mike Crewe].

The road to the bridge across Townsend's Inlet is closed at present, which was a good thing as the storm surge pushed waves high over the breakwater and onto the road [photo by Mike Crewe].

Avalon can be a very different place in the winter to the tourist-filled resort it becomes in summer. Streets on the backbay side of the barrier islands - such as here at 23rd and Dune - can become inundated with saltwater during high storm surges [photo by Mike Crewe].

Sand dunes absorb a lot of the storm force that pushes onto land during a Nor'easter, but the beaches can be a dangerous place at this time [photo by Mike Crewe].

If you fancy birding in less exposed locations, the two Ross's Geese were still feeding contentedly beside the entrance to the Cape May Ferry Terminal [photo by Mike Crewe].

Wet woods at this time of year can be worth checking for Rusty Blackbirds - these four were part of a flock of 15 or so in the Red Maple swamp at the Rea Farm on Sunday. Rusty Blackbird populations are showing a worrying long-term downward trend and keeping accurate notes of observations of this species will add to our knowledge and perhaps help us to understand what is going on [photo by Mike Crewe].

Sunday, December 7, 2014

A change in the weather

The weather has been something of a roller coaster ride over the past six weeks or so. After an all-too-early chilly snap made us think that winter was arriving very early, things warmed up a little and we were relieved to have avoided the snow at Cape May. The following milder spell has, however, now skipped off south and we are seeing a return to chillier conditions. After a rain-drenched day yesterday, a blustery day of cold, north-west winds brought clear blue skies today and Vince Elia was the first to scan the skies over the Rea Farm and pick out a Golden Eagle. Indeed, this morning, the skies over Cape May Point were worthy of October, as packs of Turkey and Black Vultures streamed high overhead and, at one point, I counted 15 Red-shouldered Hawks, spread out from Cape May Lighthouse to somewhere over the Rea Farm. Among them came a few Red-tailed Hawks, Cooper's Hawks and even a late Sharp-shin.

As temperatures drop further north, perhaps most noticeable around Cape May Point is the increase in the number of waterbirds, especially at TNC's South Cape May Meadows. The rather sorry gathering of poorly, resident Canada Geese, has now been joined by hyperactive, chatty, migratory Canada Geese. These latter birds will probably mostly continue south to winter in the more open landscapes of the Delmarva Peninsula, and southward even to Florida. But their passing through Cape May is a time of interest for local birdwatchers, as these busy flocks often bring other things - not least of which is controversy. Many species of ducks, geese and swans are popular in both public and private collections and - unfortunately - such birds are prone to escaping. Despite much discussion over perhaps too many pints of beer, there really seems to be no clear way to tell if an odd waterbird is genuinely a rare migrant, or if it is a wire-hopper - an escape from captivity. At the Meadows, three Greater White-fronted Geese are surely wild - though this species largely flies south down the Central Flyway to winter along the Gulf Coast, a few birds stray into larger flocks of Canada Geese and head southeast to hit the Atlantic Coast and make for a nice addition to a winter's day birding.

In contrast to the Whitefronts, there is usually far more controversy whenever a Ross's Goose turns up. This diminutive relative of the Snow Goose turns up regularly on the east coast, though its main migration routes from High Arctic breeding grounds largely mirror those of the Greater White-fronted Geese. Though Ross's Geese are not uncommon in captivity, there is reason to believe that at least some birds are genuine vagrants; the problem really comes when two adults turn up together, on their own rather than in a large flock of Canada or Snow Geese; then proceed to feed unconcernedly on a median divide right outside the Cape May ferry terminal - as happened yesterday. Not only that, but one of the birds has lost an eye.

Such peculiar behavior often initiates a lot of finger pointing and accusations of fowl (pun intended!). But is this the case? It seems that there really is no way of knowing the origins of birds such as these unless they are banded. I have driven the Belt Parkway to JFK Airport and seen flocks of Brant grazing on the median strip as three lanes of traffic gas-guzzles its way by in both directions. Tame birds indeed, but no question that they are wild. As for the lost eye? Well, that could happen to a tame or a wild bird, though a wild bird is likely to meet its maker sooner than a captive bird with this kind of handicap. So how do we decide on whether such birds are truly wild or not? I have to say it beats me... Maybe we should take it on a balance of probability. Perhaps being tame is OK, perhaps arriving without the companionship of other geese is OK, perhaps the injury is OK - but all three together? Who can say...

Another area of controversy among goose aficionados came to a head when the familiar Canada Goose was 'split' by taxonomists into two species - now known as Canada Goose and Cackling Goose. In short, the small, High Arctic breeding populations became Cackling Geese, but it's not that easy. The two 'species' overlap greatly in a number of ways - including size - and there remains much controversy as to the true identity of a number of 'small Canada Geese' that pass our way at this time of year. Currently, a party of seven of these small geese are hanging out at the Meadows; not for us a bunch of classic, dinky winky birds but some annoyingly intermediate 'Lesser Canada Goose' type things. If head shape, bill size and shape, breast color and scapular patterning can all be assessed accurately, you might be in with a fighting chance of identifying them, but the amount of variation does suggest that there could well be interbreeding between the various forms going on. If only life were perfect!

Personally, I found it just as interesting that there was clearly a large increase in the number of Mallards on the ponds around the point today. The Mallard is an ever-present, semi-domesticated species that we readily take for granted and it is all too easy to forget that there are genuine wild Mallards out there, heading south from boreal breeding grounds. Finally, it was wonderful to see a family group of three Tundra Swans at the Meadows today - two silver-gray youngsters and an adult. This species gets a tough time in our area due to bullying by the all-too-common, introduced Mute Swan. Luckily, the Meadows still offers a brief respite from this and the three Tundras were resting up, no doubt before continuing southward a little further for the winter.

Winter is creeping up on us - the species range is dropping, but the number of birds can be dramatic at times - wrap up warm and come and enjoy the birds!

The two Ross's Geese on Sandman Boulevard today - whether you decide to count them on your list or not, they do at least offer great photo opportunities! [Photo by Mike Crewe]

Though resting safely away from human disturbance, these Tundra Swans can easily be picked out from the local Mute Swans. At all ages, they have a longer head profile and show a shorter tail. Adult (left bird) have an all black bill with often just a small yellow flash at the base, while juveniles are a soft, dove gray color [photo by Mike Crewe].

Our recent Black Friday walk provided us with this American Pipit as one of our highlights on South Cape May Beach. Though this is a common migrant here, getting good, close views is not always easy and brief fly-overs are more often the norm [photo by Mary Watkins].

Despite the threat of bad weather, our annual pilgrimage to see the Harlequin Ducks at Barnegat Light went without a hitch... [photo by Megan Crewe]

First highlight at Barnegat - stellar views of Purple Sandpipers... [photo by Megan Crewe]

...followed by surf-dodging Harlequin Ducks - a life bird for several members of the group [photo by Mike Crewe].

Surprises at any season, that's the Cape May way! Though typically a retiring woodland species, Northern Goshawks on migration can occasionally pop up in surprising places. This juvenile gave amazing views as it perched atop bushes at TNC's South Cape May Meadows on 5th [photo by Warren Cairo]

Friday, December 5, 2014

Walking the streets, watching the yard

As December kicks in, we find that the focus of attention at Cape May can shift away from the better known locations in the less-populated parts of the county, and into our very own streets and backyards. Going for a walk around the block during the winter can net you almost as many bird sightings as you might get if you headed out to the backbays - and you may well chance upon some nice finds.

Last winter was a good case in point, when Rufous Hummingbird, White-winged Dove and Painted Bunting could all be seen at yard feeders around Cape May Point within a short distance of each other. Aiming for even greater heights, it was back in 2010 when New Jersey's first Broad-tailed Hummingbird was located in a Cape May back yard. In the short time that my wife and I have lived in Cape May, we have enjoyed such crazy birds as American Woodcocks, Bald Eagles, Eastern Meadowlark, Dickcissel, and even Crested Caracara in our yard!

Back yards and urban areas in general can be popular with birds during the winter for a variety of reasons. In largely agricultural regions, they can offer oases of cover and feeding opportunities among the berrying trees and bushes that we plant; our feeders offer sustenance during times of difficulty, while densely populated areas can even be several degrees warmer in winter than the surrounding countryside.

Through December, we continue our Saturday walks at Cape May Point, but you may find attention on these walks shifting from the open habitats of the state park, to the secluded corners of Cape May Point back yards. In January, we start a new walk for you - Warren Cairo leads a trip that takes you out from CMBO's Northwood Center (where you are invited to come and start the event with a hot cup of coffee!) and takes you to an assortment of locations according to local conditions. But, at this time of year, you can bet that many of these walks will find us looking at birds in and around Cape May's streets and back yards!

A quick drive to town to get something for lunch was interrupted when Mark Garland reported this White-winged Dove from his West Cape May back yard. Keep an eye on Mourning Dove flocks at this time of year and see what you might find lurking there [photo by Mike Crewe].

Don't forget to make your birding count - if you don't already do so, think about taking part in Cornell Lab of Ornithology's FeederWatch citizen science program...

Sunday, November 30, 2014

Another Hawkwatch ends...

November 30th can mean only one thing in Cape May, the end of another Hawkwatch season. As is traditional in the community of birdwatchers that make Cape May their home, some fun gatherings took place at the platform in the state park today; nothing formal, people just made their own decisions to come down and be a part of the day. With a return to milder weather, it was certainly a pleasant place to be, as a few ducks returned to the thawed out Bunker Pond, an American Bittern scarfed down a poor little short-tailed Shrew, and - of course - there were raptors to be counted. Actually, not an awful lot seemed to be on the move today, but Red-shouldered Hawks put on a fine display as they hunted the marsh edge and the seemingly ever-present Turkey and Black Vultures cruised overhead.

Cape May would be nothing without its birding community. With apologies to those who were present on the day but weren't there when the camera came out, but it was good to be present on such a fine, sunny day. Things can get pretty hectic during the height of migration, but it is during the winter that Cape May birders really come together as a community and have a big old group hug. Massive thanks to Mary Raikes (front row in tan pants) for doing a stellar job this year (and to Swing Counter Tom Reed too [photo by Deb Payson].

The Hawkwatch Platform has an amazing capacity to attract an interesting suite of birds throughout the fall period. This American Tree Sparrow spent Saturday hanging out with the local House Sparrow flock right in front of the platform, though it appeared to prefer native goldenrod seed to anything artificial put down for the birds [photo by Mike Crewe].
 
American Bitterns have been a regular feature of the Hawkwatch Platform this season, with up to three birds present at any one time. This individual hunted the open, recently cut areas of reedbed in front of the platform at lunchtime today [photo by Mike Crewe].
 
Researchers around Lake Huron are studying populations of breeding Great Egrets in newly occupied areas. This bird with wing tags marked '98W' has been hanging out at the state park for some time now and can currently be easily seen on Bunker Pond. Reporting such birds helps us to understand more about bird populations and movements and reported sightings from members of the public are an integral part of the research. You can read some of the early results from this project at http://www.harborestuary.org/reports/harborheron/Presentations/121208/Weseloh_Great_Lakes_GREGs.pdf
[Photo by Mike Crewe] 



The Hawkwatch may, sadly, be over for 2014, but the birding year is far from done. Winter may bring cold weather, but, with a good dose of hot coffee and layers of clothing, there's plenty of good birding just around the corner. Why not kick off the winter by joining the CMBO Harlequin Romance trip to Barnegat Light. This annual venture along the New Jersey coast has regularly provided us with exceptional views of Harlequin Ducks, as well as an array of other winter birds, including Snow Bunting, Iceland Gull, Black-legged Kittiwake, King Eider and more. Call our program registrar and we'll see you next Saturday! [Photo of Harlequin Ducks at Barnegat by Mike Crewe]

Wednesday, November 26, 2014

That whole Thanksgiving-Magpie connection...

Birds are truly exceptional, perhaps close to unique - though dog and cat owners might disagree - in the way that they work their way into the hearts and minds of people. Throughout the history of our species, birds seem to have held a variety of roles, ranging simply from food, to essential companionship. Birds, it seems, are important to us and I was fascinated to discover recently another link between birds and people that I was unaware of, but that is very apposite given the pie-filled festival that looms on the horizon - Thanksgiving!

The humble Magpie has a checkered history with mankind; most often seen as a symbol of theft and implicated by many (mostly those who don't apply science to their thought process!) as instrumental in recent downward trends of songbird populations, conversely, they also attract a special reverence, often coming to light in the nursery rhymes of children, and regularly featuring in the writings of great authors such as Shakespeare and Chaucer. Magpies are found throughout the temperate Northern Hemisphere in both the Old World and the New World (modern taxonomy not withstanding) and are obvious to us due to their noisy chattering calls and their striking black and white plumage. We have no magpies in the Eastern USA - for which we should feel hard done by - but they still remain familiar to all, and tales abound that include magpies.

So what is this new connection? Well, etymology is a subject that has long fascinated me; that is, the origin of words and how they come about and evolve. It is well-known that the word 'pied' refers to anything that is black and white - thus,  the word magpie is said to be a contraction of 'maggot-pie', the pied bird that eats maggots. All well and good, but where does the word 'pie' come from originally - and why is it used for a black and white bird as well as for something that we eat. Well, I was recently reading that the word 'pie' for the thing that we eat actually comes from the pied appearance of the contents of a pie. Not so much black and white, but certainly an assortment of textures and/or colors. Similarly, the often widely varied list of ingredients that go into a pie is said to bear a resemblance to the Magpie's liking for collecting a miscellany of objects to adorn the nest.

There is much written about this in such learned tomes as the Oxford English Dictionary and no need for me to repeat it all at length here. Suffice to say that, as well as celebrating the humble Turkey on Thanksgiving, I think we should also raise a glass to the wily Magpie as we tuck into pumpkin pie - and I'm prepared to bet there will be other birds around the table tomorrow too. So here's a challenge: how many different birds can you find associated with your Thanksgiving celebration? For a few clues, don't forget to check out the wine or beer labels, the brand names of the various food items used in preparing the meal and pretty much anything else going on around you - what about the names of the sports teams you may very well be enjoying (or suffering, depending on performance!) on the day...

Happy Thanksgiving...

We may not have Black-billed Magpies in Cape May, but we do have American Oystercatchers. An old name for the oystercatcher was Sea-pie, a name which continues the affinity between a melding together of contrasting colors in birds, and the richness of ingredients in a tasty pie [photo by Mike Crewe].
 
Don't forget - we'll be out in the field on Friday with our 'Walking off the Turkey' stroll at the wonderful South Cape May Meadows. Come and join us at TNC's parking lot on Sunset Boulevard at 9:00AM for a light-hearted, end of season bird walk - surprises are guaranteed at this time of year!! [Photo by Mike Crewe]

Saturday, November 22, 2014

Global Warming? Don't make me laugh!!

As an unseasonably early cold snap sweeps across Cape May and brings a host of avian goodies our way, the nay-sayers are having a field day. Five feet of snow recently dumped itself on the unfortunate residents of Buffalo, NY and the term "Global Warming" comes under attack yet again. Unfortunately this term, which served a purpose when first coined, has given the nay-sayers much opportunity to deny the facts - and that's just what happens if you hang desperately onto a single piece of the jigsaw and ignore all the other pieces. And that's especially a problem when that single piece is, even as I write, tumbling inexorably off the dining room table and heading for the dusty spider web under the book case.

Science and understanding is about research, and research is best understood when each project is part of a much broader picture. Global warming over time is happening and is demonstrable; and yes, it has happened before, but right now, it appears to be happening faster than ever before - so we need to understand why that might be. The best way to do that is not to go join the spiders under the book case, but to hang on to pieces of the jigsaw that are firmly on the table. Long-term projects such as the British Trust for Ornithology's Integrated Population Monitoring program don't just look at a single facet of bird life, they take all the pieces and put them together. Though long term, scientific projects such as Constant Effort Sites, Wetland Bird Survey and the Nest Record Scheme are used, much of the work they use comes from citizen science data. The basic bird records and sightings that come from people's daily observations, their notebooks and local survey projects. These can then be tied in and compared with data from other projects; from longer-term, focused surveys with more rigid methodologies to help provide us with the facts - and to help to question all of it, such that we can be as certain as is possible that we have the right answers. And if we don't like the answers, well, ignoring them or denying them does not alter facts.

As an interesting example of how an integrated program means that we can gain the facts more effectively, we can scour academia for projects that might not be immediately apparent. A recent paper with the title of Temporal patterns of avian body size reflect linear size responses to broadscale environmental change over the last 50 years was probably discussed at far fewer family breakfast tables than the news story of the Buffalo snowfall, yet it gives us a much better insight into what is really going on. Who would have thought that measurable reductions in bird size were taking place over time on at least three continents around the world? Such reductions in size are consistent with local climate change over time. How do we know? Well, all such academic studies start with data gathering and that can come come from a variety of sources and a significant source of such data is the daily recording and logging of your local birds.

Let's all be a part of this - it is truly fabulous that we can go out and enjoy our birds, record what we see and leave academia to do the boring backroom stuff. Enjoy your birds, but record and report what you see - be a part of making a difference!

High on the list of indications that cold weather was heading our way was the recent run of Tundra Swan sightings. These impressive Arctic visitors seldom spend the winter with us, but pass through on migration and can be a highlight of any cold day in late fall or early winter here. An exceptional (in recent years at least) count of over 70 birds was on Bunker Pond on November 20th, while the birds in this picture were passing over the Avalon Seawatch. Where are they going and where did they come from? Answering such questions will give us an insight into the lives of these birds, while recording over time will show if population numbers change, or choose different migration routes and wintering grounds [photo by Sam Galick].

In the summer, American Kestrels feed largely on sizable insects such as crickets and grasshoppers, so how do small numbers of kestrels manage to survive the winter here, when such prey items are not available? Studies have shown that they switch to feeding more on small birds and rodents - but will this change if the climate changes? Can careful monitoring of winter distributions of kestrels and recording of prey items offer inferences about climate change? If we don't do the work, we won't know [photo by Sam Galick].


Baltimore Orioles are common migrants at Cape May, but there seems to be a peculiar trend in sightings; birds pass through in good numbers during September and October, but then there is something of a hiatus before another run of birds takes place in late November and December. Where have these birds come from and where are they going? Perhaps long-term banding projects at a large enough number of locations can answer this. These two birds are currently chomping on Porcelainberry at The Beanery [photo by Sam Galick]

Western breeding species regularly show up on the east coast in late fall - this Western Tanager turned up at The Beanery yesterday and continues there today, feeding on Porcelainberries with a group of Baltimore Orioles. Such spacial patterns of dispersal were once thought to involve 'lost' birds that were not worthy of study, but such limited views deny us the opportunity to discover whether this is indeed the case. Careful recording and tracking of vagrants can be one piece of the jigsaw in monitoring changes in bird distributions - some of which might easily be due to climate change [photo by Sam Galick]

Although this Loggerhead Shrike has been present at Corbin City Impoundments since at least October 8th, it's taken time for it to come close enough to the trail such that good photos can be achieved. At a distance, Loggerhead and Northern Shrike can be hard to differentiate and this bird bounced back and forth for a while. At close quarters, the lack of visible scaling on the underparts, lack of white supercilium and relatively short primary projection all support the identification as Loggerhead Shrike. Much of our knowledge of the separation of these two species visually has come from scientific collections held in a number of museums and scientific faculties around the world (not to mention the science required to build the camera that took the picture!) [photo by Sam Galick].


It's time to go out and just enjoy the birds....

Bald Eagle at Cape May Point State Park [photo by Mike Crewe].