25 March 2010

Spring Waterfowl Shoot

Over the past three or so years, the juncture of my birding and photography passions has evolved into what seems to be a new tradition - a spring waterfowl shoot. Each March, the arrival of migrant waterfowl coincides with the beginning of ice melt in our Montana waterfowl marshes. Initially, the melt takes place mostly along the margins of the water bodies before openings occur farther out in the marshes and lakes. At the same time, the ice in the cattail and bulrush stands is slower to melt, probably because of the shading and insulating influences of these dense stands of vegetation. This differential melting provides a perfect opportunity to get closer to the openings used by the variety of early arriving waterfowl. And, of course, the cattails & bulrush also act as a pretty good opportunity for camouflage and hiding. In addition, these plants provide some comfort and insulation for sitting hours in one location.

The window of opportunity that these conditions present may be limited to 10 or fewer days, depending on the progression of ice melt. This year, the window was quite short because of the warm and windy weather we experienced in mid-March. In the previous 2 years, good conditions persisted longer.

To get positioned properly, one has to take into account the wind and sun direction for best photo opps. "Shooting" birds in flight is every bit as challenging with a camera as it is with a shotgun. And believe me, on a good day, I take many more shots with a camera than I ever did with a shotgun, so the success rate for the camera is generally far below that of the shotgun. But it is great fun and a fantastic way to enter the spring season of new birding/photography opportunities.

To date, this new tradition has focused mostly on the Lake Helena area of the Helena Valley and on Freezout Lake Wildlife Management area. The latter has the advantage of a potentially spectacular backdrop of the Rocky Mountain Front. Northern pintails are the are usually my prime targets, but there are numerous other species present that also spark my interest.Canvasback are also high on my list but are not nearly as abundant as other species.My photographer friends and I are not the only Montanans that "flock" to Freezout Lake at this time of year. Huge concentrations of snow geese and swans use Freezout as a way point on their migration to breeding grounds in the far north. Concentrations of 100,000 or so geese are not unusual during spring migration, and weather events sometimes temporarily slow northern movement with a resulting buildup approaching a quarter million geese. Swan numbers sometimes approach 10,000 or so, but this is somewhat unusual and a peak of 5,000 or so would be more normal. These large concentrations of waterfowl a truly an amazing spectacle of nature!

When looking at flocks of white geese, it is a challenge to see if you can distinguish the Snow geese from Ross's geese. Although the plumage is nearly exactly the same, the latter species has a smaller body and the head shape and bill are diagnostic. These are snow geese.Tundra swans are by far the most numerous of this group but trumpeters are sometimes mingled among them. Bil shape and the yellow spot usually found at the base of the Tundra swan's bill are the best way to separate these species. Click on this image to view the yellow spot.The call of the Trumpeter is also noticeably lower than that of the Tundra swans.Common goldeneye are usually fairly abundant at this time of year but seem to fly faster than other species and are difficult to get good shots of.And, of course, there is the ubiquitous mallard. I try to ignore this species because they are so common, but that is often difficult to do when they fly nearby.
Redheads can also be a challenge, but every now and then I get lucky with them - birds that is!!But with all of the different opportunities, pintails are still my species of choice. I wonder if that will change in future years. My best shot of a single pintail drake I took 2 years ago, but there is always room for improvement - and that perfect shot!!

18 March 2010

A Change of Pace!

In recent years, a pine bark beetle epidemic in the Northern Rocky Mountains has devastated stands of Ponderosa and Lodgepole Pine. I must admit that when this huge infestation hit our area around Helena, I was skeptical that it would or could do the damage that others had predicted. But all I have to do is look out my office window to the south to see what nature has wrought! Just to the south of our home in Helena, no more than 75 yards or so, there is or was a stand of Ponderosa Pine that several years ago seemed to be reasonably healthy. Then about 3-4 years ago, some of the trees began dying. This was not unexpected because that happens in nature, especially in forest stands that are too dense and in need of some natural thinning. But over that 3 or 4 year period, it appears that nearly 90 percent of the trees have died from the beetles, and the epidemic may not be over.

Over the past few weeks, the whining and buzzing of chainsaws could be heard throughout the day as dead trees were being felled and stacked for burning by crews employed by the city of Helena. Under other circumstances, my instinct would be to object to such an operation because dead trees are beneficial to many bird and other wildlife species. And indeed, the numbers and diversity of woodpecker species in other areas of dead and dying trees near Helena are noticeably greater than only several years ago. But these dead trees above our home actually border the back yards of our neighbors and likely pose a significant danger of wildfire during the hot days of summer.

This morning, as I returned home from visiting a friend, smoke billowed upwards from the remains of the Ponderosa Pine forest just to the south of our home. Fire crews were igniting and tending to the numerous piles of slash that remained from the weeks of chainsaw action. And I concluded that in this instance, that is a good thing! As you might expect, there is some debate about the conclusion by some experts that this insect infestation has been exacerbated by the trend to warmer temperatures in our area over the past several decades. They say these Pine Bark Beetles do not fare well during periods of intense cold that use to be the norm around here. I don't know whether this is the case or not. But I do know that this insect epidemic seems to be the worst to hit forests in the Northern Rocky Mountains in recorded history - so there is certainly something going on in nature that should have a rational explanation!

I took the following series of photos to record the happenings of the day to compare them with what the area will look like several years down the road. Hopefully, there will be some natural tree regeneration resulting from seeds produced by the fortunate few mature trees that remain.

12 March 2010

Some Montana Winter Birds

With winter beginning to fade here in Montana, I decided to take a look at what I had acquired for bird photos over the past 4 months or so. Compared with past years, the results are on the meager side. There are at least several reasons for that - less effort on my part and what seemed to be fewer bird species and numbers in the Helena area this winter.

As a general observation, our winter birds are not as colorful as the spring migrants and summer breeders. An exception to this may be the waxwings that are among our most photogenic winter visitors. But what our other winter residents may lack in color, they seem to make up in being quite photogenic. That is to say that their color patterns make for very good photographs. And there is no better example of this than Black-capped Chickadees. Last winter, a friend who feeds birds where he lives in the pine hills south of Helena invited me to take photos of the good variety of birds he had attending his feeders. A visit there last week was productive for several species such as Red-breasted Nuthatches and Brown Creepers, many of the species present last year were no where to be seen on this latest visit.
Out in the Helena Valley, one of the species that seems to be relatively plentiful are Gray Partridge. And the few open water areas that we have in winter usually support several of our hardier waterfowl species such as one of my favorites, the Hooded Merganser. And the Missouri River below Hauser Dam is a great place to view Common Goldeneye numbering in the hundreds. Perhaps surprisingly, our National Bird - Bald Eagle - is also quite easy to find in winter, with some of them likely being residents breeders and other maybe migrants that winter here. Now, as the weather warms and the ice loses it grip on our ponds and lakes, the spring waterfowl migration is upon us. This is a great time to get out into the frozen cattail marshes and wait for opportunities to photograph some of the abundant ducks, geese, and swans that stop over on their way north. Assuming we will get some nice weather in the next week or so, my next blog will feature some of images of these fast flying targets.