Showing posts with label Seabirds. Show all posts
Showing posts with label Seabirds. Show all posts

Tuesday, May 17, 2016

It's puffin time again!

Puffin on Gull Island, Witless Bay
It's that time of year again -- the puffins and other seabirds have returned to their colonies around the coasts of Atlantic Canada and Maine. There are many places around the region to see these small, sturdy birds, but two locations stand out: the Witless Bay Ecological Reserve for sheer numbers, and the Puffin Island at Elliston for land-based observation.


The Witless Bay Ecological Reserve lies south of St. John's, Newfoundland and Labrador. Witless Bay takes its name from an early family of settlers, the Whittles family; over the years the name has been corrupted to its present form. The four islands of the reserve lie just off the shore, from north to south they are Gull Island, Green Island, Great Island, and the fancifully named Peepee Island, whose name is said to be from the distinctive aroma that wafts from it in summer.



Typical "puffin weather" at Elliston
There are boat tours that allow for a closer approach to the islands; to protect the bird life, only those operators granted special permits are allowed to travel through the reserve. Bay Bulls is the primary starting point for these excursions, while operators can also be found in the town of Witless Bay and in Mobile, just to the south. All Witless Bay photos in this post are thanks to Captain Wayne's Marine Excursions of Bay Bulls. Other operators can be found here.


Puffins are true pelagics: they land on these rocky islands solely to mate and rear their young, spending the remainder of the year on the open sea. They burrow into the dirt of the island, or on rockier sites use narrow clefts in the rock for burrows. The pairs bond for life, returning to the same burrow year after year, although "divorces" are said to occur if one mate is a less-than-stellar provider. They're not the only seabirds that nest in the Reserve; there are also black-legged kittiwakes, common and thick-billed murres, black guillemots, and huge numbers of Leach's storm petrels among others.


Burrow entrance
Elliston, located on the Bonavista Peninsula, is the self-styled Root Cellar Capital of North America due to the large number of these storage structures that can be found there. Just outside the community is a headland accessed by a rocky trail that leads to a viewing point overlooking a small island that houses a breeding colony of puffins. The unusual thing about this spot is that when the weather and wind are right (often damp weather and a southeast wind) the puffins will land near the viewing area on the headland itself. This makes for some incredible up-close viewing experiences.

The puffins will be around until late August, with a few lingering into September, so there's plenty of opportunity for a good look during the summer months. Happy viewing!

Monday, April 18, 2016

The Birds of the Open Sea

Newfoundland and Labrador is a prime location to see birds that normally make their home on the open sea -- the pelagics. The word is defined as "of or relating to the open sea" and in birding it refers to those species that spend most of the year on the open water and make their way to land only for the breeding season and to rear their young. They're fascinating, hardy birds and there are many varieties of them. Here are a few that can be found along the coastline of Canada's easternmost province:


Atlantic puffin
Atlantic Puffin (Fratercula arctica)
Nicknamed the Clown of the Sea or the Sea Parrot, this member of the alcid family can be found in huge numbers around Newfoundland and Labrador. Not satisfied to host the largest colony of this seabird in North America, the province also boast the next five largest colonies as well! Puffins aren't great fliers, and are far more comfortable in the water than in the air or on land. Their most-favoured nesting sites are islands that are naturally protected from most land-based predators, although still have to contend with occasional forays by gulls, hawks and even eagles. Puffins dig burrows into the soft soil of the islands or nest in clefts in the rock. The best viewing areas for puffins are from the boat tours serving the Witless Bay Ecological Reserve just south of St. John's, and Elliston's Puffin Island on the Bonavista Peninsula where the puffin-watching is land-based. The image at right was taken on an evening cruise with Captain Wayne's Marine Excursions in Bay Bulls.


Razorbill
Razorbill (Alca torda)
These elegant-looking birds with their black tuxedos and pinstriped bills are also alcids. Like many other pelagics they are colonial, tending to nest in large groups. They are less common than puffins or murres in this region, but a trip to the islands of the Witless Bay Ecological Reserve in season is bound to bring a sighting or two. Auks like these mate for life, and each pair of adults produces only one egg per year; if that egg is lost another may be laid but in all likelihood won't be viable since the hatch is timed to coincide with the run of caplin (or capelin), a member of the smelt family that is the primary food source for most nesting seabirds along Newfoundland's coasts. When the breeding season is over, these birds head out to sea and spend the remainder of the year offshore, as far south as New Jersey and occasionally Virginia.




Common murre nesting colony
Common Murre (Uria aalge)
This abundant bird is penguin-like in appearance, its resemblance to those southern-hemisphere birds the result of convergent evolution, or the gradual evolving of similar features in unrelated species as a result of living in similar environments. Unlike penguins, though, most alcids are capable of flight -- the exception was the great auk, extinct since the mid-19th Century, which was once found here in huge numbers. British birders know this species as the common guillemot.


Thick-billed murre
Thick-billed Murre (Uria lomvia)
Known to British birders as BrĂ¼nnich's guillemot, the thick-billed murre is distinguished from its common cousin by the white line along the side of the bill, which is slightly thicker than that of the common murre. Both species lay their eggs directly on the rocks instead of building nests, and the eggs are conical in shape so they roll in a tight circle -- a necessity when they are laid on narrow rock ledges high above the sea. Common and thick-billed murres are superb swimmers and divers, using their wings to "fly" through the water to depths of more than 100 metres. 



Juvenile black-legged kittiwakes
Black-legged Kittiwake (Rissa tridactyla)
The kittiwake is a pelagic gull that nests on rock ledges. Unlike the alcids, these birds may lay two or even three eggs. They are graceful and agile fliers, and their name comes from a phonetic rendering of their call. In Newfoundland they are sometimes referred to as the tickle-ace or tickle-ass, from their habit of flying close behind other birds and harassing them by nipping at their tail feathers as they carry prey, in an attempt to get them to drop it; this behaviour of stealing food from other birds is called kleptoparisitism



Northern fulmars
Northern Fulmar (Fulmarus glacialis)
This handsome bird is found mostly in subarctic regions of the North Atlantic. While it looks like a gull it is related to both petrels and albatrosses, evidenced by the structure of its beak, which has evolved to help it remove salt from its system.  Its wingbeats are stiffer than those of a gull and it can be recognized by the way it glides, and by the dark spot in front of the eye. When threatened, the fulmar has a rather disconcerting habit of projectile vomiting on the intruder, a very effective deterrent indeed.



Northern gannet feeding young
Northern Gannet (Morus bassanus)
This member of the booby family nests in colonies of bare rock, building a nest from grasses, seaweed and found materials like netting twine. The adults mate for life and raise a single chick each year, remaining in the nesting area until late in the autumn. A prime viewing area for this graceful species is the Cape St. Mary's Ecological Reserve near St. Brides, where they nest on a remarkable sandstone seastack that is only about ten metres away from the viewing area, reached by a 1-km-long trail from a well-designed interpretation centre.


Greater shearwater
Greater Shearwater (Ardenna gravis, formerly Puffinus gravis)
While it breeds in distant Tristan da Cunha in the South Atlantic, the shearwater is a frequent summer visitor to the shores of Newfoundland, especially when a cold wind blows the fog in off the sea. Its name comes from the bird's gliding flight just above the water's surface. The darker sooty shearwater can also be found here, and there is a small breeding population of of about 350 Manx shearwaters (Puffinus puffinus) off the coast of the Burin Peninsula.




Thursday, March 28, 2013

Birdwatching on the Rocks

 

The sweet piping call of the black guillemot isn't easy to hear, but it signals the presence of one of Newfoundland and Labrador's most delightful seabirds. "Black guillemot" is a rather formal name for this little bird, whose scientific name is Cepphus grylle. In Scotland it's affectionately known as a tystie, it's often referred to in Newfoundland as a sea pigeon, and these days it's sometimes jokingly called a Newfoundland strobe light because of its bright white wing patches and wing liner feathers, which appear and disappear in flight creating a strobe pattern. It's at the small end of the size scale for our summer seabirds, and it's more skittish than puffins or even murres, so it's a bit more difficult to photograph. Patience pays off, however, since its glossy black feathers are strikingly handsome and its feet are bright, crimson red -- bright enough to be seen through clear water when the bird is swimming or diving below the surface in pursuit of food. The real surprise, though, comes when the black guillemot opens its mouth: the gape, too, is right red! 


The birds breed on rocky shorelines, especially on isolated islands and outcrops along the Atlantic coasts of North America and Europe. Unlike most of our seabirds, they don't migrate far from their breeding areas; their plumage, though, goes from the black feathers of summer to mostly pale grey and white in winter. Puffins and gannets and murres might get more attention, but when you visit Newfoundland and Labrador, spare a few minutes to get to know the black guillemot!


Thursday, March 14, 2013

Breaking Winter's Hold

Spring is gradually making its presence known on the Eastern Hyper-oceanic Barrens, as the snow begins to melt and the warmth of the sun reaches the earth beneath. What was once an unbroken expanse of white has become a mottled, patchy landscape where the deepest drifts remain but bare ground is showing through. Bird Rock is the spot where thousands of northern gannets (Morus bassanus) will soon be arriving to begin their nesting ritual; today it's completely bare, swept clean of nesting materials by winter's storms and gales. Ironically, it won't
be long before it's once again covered in white; this time, though, it will be the snowy white plumage of the gannets that provides the coverage. The gannets begin to arrive in mid-March, older birds returning to the nesting sites they've used in the past. The other birds that nest here will arrive soon as well; in fact, the first of the kittiwakes have already returned but are not nesting on the sheltered rocky ledges they prefer. The murres will soon be back, gathering on even narrower edges where they'll lay their conical eggs directly on the rock without benefit of a nest, and the razorbills will be seeking rocky niches for their eggs as well.
Today the Cape is silent apart from the sound of the breeze whispering through the low-growing grasses. Soon, though, the air will be filled with the cries of thousands of seabirds as they wheel above or plummet into the sea to feed in an electrifying display. The caplin will be coming into the beaches to spawn, and the whales will follow them close inshore as the summer progresses. The rich life-cycle of the Cape is at a low ebb now, but the tide is turning fast.