Showing posts with label Natural Habitat Adventures. Show all posts
Showing posts with label Natural Habitat Adventures. Show all posts

Monday, November 28, 2011

Part IV Life and death on the tundra

(Please start with Part I, and work your way up, if you haven't already!) 
We spent two very full days on the tundra, learning more about it and its inhabitants each day. Polar bears thrive on a diet of ringed seals, which live in Hudson's Bay year 'round (and elsewhere where polar bears abound) but the bears can only access them from the ice surface, in other words, they can gorge themselves on this nutritious food source only from November through about June each year--unless a seal is serendipitously delivered up to them on the beach before ice-up. It does happen; given the windstorms we were experiencing, I would guess by the looks of it, this poor guy apparently had had a fatal head-on bash against a rock. 
Ringed seal, favorite polar bear food, named for the distinctive spots on its hide.
Polar bears, like other bears, are by no means averse to consuming a free meal, and this one had already started to investigate this gift from the sea.

A polar bear tests the air in an effort to locate the odoriferous seal carcass about 75 or
100 yards in our direction.

Same hungry bear, circling the source
Unfortunately, at that moment there were a three tundra vehicles surrounding the seal carcass, and I think, in spite of very strong off-shore winds blowing across it towards the bear, the large vehicles may have distorted the scent-line. He walked back and forth several times while we watched, stopping to point his nose in the air, clearly aware that a free meal awaited somewhere nearby. But he either wasn't quite able to accurately locate it, or he was not willing to pass between the rovers to get it. After a while he bedded down in the osiers for a nap. A friend who stayed in the Tundra Lodge later reported to me that the next day her rover excursion witnessed a bear consuming the last of the seal. It may have taken a while, but the bear(s) took full advantage of it after all.  
More bears out there, everywhere:




A nice big bear heads toward the fully liquid Hudson's Bay; less than a month later the Bay was frozen and the bears had left the tundra.
The nature preserves of Churchill are known for other wildlife besides polar bears, too. Everywhere we saw what looked like dozens of kleenex tissues fluttering in the wind, rising about 15 feet in the air, swooping, and landing on the ground. When the "tissues" did finally descend for a few seconds they were revealed to be snow buntings, like large sparrows with white breasts and undersides, black-tipped wing tops, and rusty nape, head, and "necklace," pecking at the remnant fruits of the summer's seed-bearing plants. We saw a raven or two, three or four lesser scaup lagging behind their migrated brethren, and maybe an occasional gull--forgive me if I know not what kind. We also saw a tiny herd of rock ptarmigan, all in winter white except for little black Zorro masks across their eyes. Most disappointingly, none of this birdlife was gracious enough to stand still for a photo. In other seasons, they say, it's birding paradise. 
Other critters we might have seen, but did not happen to: arctic fox, arctic hare, boreal woodland caribou, and moose. And very, very remotely possibly, wolves. What we did see, in town near the docks (on Cape Merry) rather than out on the tundra, was this stunning red fox, described as being "cross phase" meaning, I believe, that it combined red and silver fur patterns in one animal:

With apologies for the poor quality image (what a lost photo op!!) -- I wasn't allowed to get out of the van and shoot without a windshield between camera and critter because a polar bear was said to be in the vicinity. We didn't see the bear but in the distance we could see the trap that awaited it.

And of course, the presence of fox means a plenitude of small rodents year 'round. It gave me the feeling that there's so much more going on out there that I wanted to know about!
Go to Part V.

Sunday, November 27, 2011

Part III: Where the bears are

(Please start with Part I, and work your way up, if you haven't already.)
Bears are not welcome in town (about that more later), but they have their own protected territory:  The Churchill Wildlife Management area (which also encompasses Wapusk National Park) is just adjacent to town. In the far distance to the left of the sign are the buildings of the Churchill Northern Studies Centre, where scientists conduct research on wildlife, botany, geophysics, climate, and everything else that is fascinating about the boreal tundra. 
Churchill Wildlife Management Area
From: Hudson Bay Lowlands Proposed Protected Areas (undated), Manitoba Conservation
The very top of the beige area on the map, along the shore of Hudson's Bay, is accessible to permitted organized tours. But accessible has a rather specific meaning on the tundra. Although the Canadian military once used the area for research and training, the "roads" in the protected area can only be referred to in quotes

What the military left behind was a small network of routes that require specialized vehicles to navigate. The vehicles used today, called tundra buggies or rovers, were locally designed and assembled to safely navigate the terrain (deep mud, water, ice, snow, rocks large and small), and to keep passengers warm and safe inside while allowing good viewing and photography. Early on our first morning in Churchill, Great White Bear Tours delivered us to the rear viewing deck of our rover to board.
The rovers are truly massive, and although they accommodate 30 or so people plus the guide and driver, NatHab limits the number of participants in each group to 14 or 15 so every one can have a window seat. Everyone wants a window seat! 
They heave along the tundra at maybe 3 to 5 miles an hour, affording plenty of time to keep a lookout for wildlife. We rolled along for almost an hour while Sandra talked about bears, the tundra, and the local culture. Then someone called out BEAR!! There she was, our first wild polar bear, rolled up against the willows, butt to the wind (of which there was plenty: it had not let up even in the slightest since our arrival). 
She momentarily looked up, sleepy and unconcerned--the bears have been living with rovers full of tourists in their midst for at least 20 years--conserving energy while waiting for the winter hunt to begin. Then she went back to sleep.
The reason they rest butt-windward, which we observed over and over again on our forays on the tundra, is that it enables them to utilize their acute sense of smell to monitor what is going on behind them; like humans, they have to squint when facing the wind, so thus oriented, they can then use their human-like vision to keep an eye on what is before them, even in blizzard conditions.
Facing the wind
Great White Bear Tours and one other company also have rights to park a train-like assembly of tundra vehicles that includes a kitchen car with staff quarters, dining car, lounge, and several sleeping cars, during polar bear season. Visitors can opt to stay out on the tundra in one of these lodges for the duration of their visit; they're probably not as comfortable as those of us in town, and they did not have the opportunity to enjoy the local culture and variety of restaurants (more on these later) like we in town did, but their bear sightings were nearly continuous as the bears, curious by nature and bored by circumstance, like to hang out near the lodges. Each time our rover stopped at the lodge we were amply rewarded.
Another snoozing polar bear, this one beneath the Tundra Lodge
This bear, hanging out by the lodge tires, was consuming a ball cap that had blown off of someone's head from the viewing platform above.



All bears use their noses, but polar bears are believed to have the most well-developed sense of smell among their kin. Reportedly, they can pick up the scent of seal breath 20 miles across the ice. This guy appears to be particularly enjoying the aroma of fresh tourists.

Go to Part IV.