Butterfly Concerns

by Pat Jaquith
pat@westvalleynaturalists.org


Nymphalis antiopa (Mourning Cloak Butterfly), the Montana State Butterfly

The sight of a Mourning Cloak butterfly is a sure sign of spring to me! In late fall, they crawl behind loose bark on a tree where they increase the level of glycerol in their blood, convert excess water in their bodies into a gelatin-like substance that doesn’t freeze, and spend the winter. As spring warmth arrives, they reverse those properties and start flying sooner than many others! Many butterflies endure the winter as eggs, caterpillars, or in a chrysalis. A few, like Monarchs, migrate to warmer climates.

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All About Argillite

by Skip Via
skip@westvalleynaturalists.org

To take a virtual tour of the West Valley area, click here

You see it everywhere in the valley–lining the bottom of creek beds, along hiking trails, layered throughout road cuts, on the shores surrounding Tally Lake, in the cliffs around Flathead Lake, piled at the corners of plowed fields, covering fireplace hearths and floors, in the pavement of many area roads and parking lots, and often in your yard when you are trying to dig a new garden bed (especially if you live on a glacial drumlin, as I do). It’s the predominant rock in Glacier National Park a few miles to our east, as shown in this Google Earth image, below:

It’s argillite, the colorful rocks and tiered strata that were formed during the Precambrian period well over 500 million years ago–and western Montana is one of the best places in the world to see it.

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Rough-Legged Hawks are Winter Residents

by Pat Jaquith
pat@westvalleynaturalists.org

Rough-legged hawk profile 9.10.

It’s fall already; raptor fans have been counting the migrating raptors at various mountain top sites for a few weeks, and I’m already noticing fewer soaring birds in the West Valley. Any day we may see Rough-legged Hawks that have migrated thousands of miles to call this home for the winter.

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Birds and Berries


by Pat Jaquith
pat@westvalleynaturalists.org

In spring and summer when birds are nesting and raising young, insects are prominent in their diets. The young fledge, and their diets tend more toward fruit, berries, and other high energy foods to fuel their needs for warmth if they’re staying here or energy for migrating.

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Coot Parenting?

by Skip Via
skip@westvalleynaturalists.org

Both male and female coots sharing parenting responsibilities for their brood. However, they are not notoriously good parents, at least in one sense of the term. Coots usually hatch 7-9 chicks, but the parents–by some pretty draconian means–like to get that number down to a more feedable 3 or 4. How they do it is…not pretty.

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Eagles Everywhere

by Skip Via
skip@westvalleynaturalists.org

Bald eagles are a fairly common sight in the valley year ’round. In the summer, you’ll find them in trees along creek beds, around ponds and marshes, and even congregating around a roadkill deer. They are opportunistic feeders, preferring fish that they either catch themselves or snatch from other animals such as ospreys or otters, but they will happily take hares, birds, snakes, gophers, frogs, or whatever else is available, including roadkill.

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Rocky Mountain Beeplant

By Skip Via
skip@westvalleynaturalists.org

Rocky Mountain beeplant is native to the valley, although I seem to rarely encounter one. They are annuals, but they can grow up to 5 feet in a season. They are in the cleome family (Cleome serrulata) and are often cultivated in gardens. They are one of the most visually striking wildflowers in the area, as you will see.

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White faced Ibis

by Skip Via
skip@westvalleynaturalists.org

Kalispell’s West Valley is situated toward the northern end of the breeding range of the beautiful white faced ibis. The spring migration season of 2020 was witness to an unusually large number of these birds making their presence known in the valley. We’ve had multiple sightings of more than 50 birds at once at the Potholes and the West Valley Wildlife Viewing area (see Locations), and fewer at Bowser Lake in the Pig Farm state trust land area.

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Spotted Coralroot Orchid

By Skip Via
skip@westvalleynaturalists.org

One of the less common—and certainly one of the most unusual—flowering plants you might encounter in the valley is the spotted coralroot orchid. At first glance it may appear to be dead. It has no leaves, and it can be a deep brown color. But look closely and you’ll find an exceptionally beautiful orchid.

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