Photo of the Week – May 22, 2014

Last weekend, I took advantage of a beautiful evening and went for a hike at Griffith Prairie, a site north of town owned and managed by Prairie Plains Resource Institute.  It was mostly cloudy, but I was banking on the clouds thinning before the sun went down.  They did.

Prairie ragwort (Packera plattensis) at Griffith Prairie, near Marquette, Nebraska.

Prairie ragwort (Packera plattensis) at Griffith Prairie, near Marquette, Nebraska.

Griffith Prairie has been managed with patchy fire and relatively intensive grazing during the last couple of years, and experienced a severe drought in 2012.  As a result, the perennial grasses are pretty weak, opening up lots of space for wildflowers – both short-lived and long-lived ones.  Leadplant (Amorpha canescens), prairie clovers (Dalea sp.), prairie violets (Viola pedata) and other long-lived forbs are thriving, but are joined by a throng of more opportunistic species such as shell-leaf penstemon (Penstemon grandiflorus), false dandelion (Nothocalais cuspidata), windflower (Anemone caroliniana), and prairie ragwort (Packera plattensis).  Short grass, steep hills, abundant wildflowers, and pretty clouds combined to make a great hike!

Some people consider ragwort to be “weedy” but it’s a beautiful plant and a good resource for bees and other insects. It tends to come and go, based on the degree of grass competition present.

Violets and false dandelions were mostly done blooming, and penstemon hadn’t started yet, but ragwort was flowering in big beautiful patches.  I spent quite a bit of time trying to figure out how to compose a photo that represented what it really looked like.  I couldn’t, but I hope you can imagine it anyway.

And more.

And more.

I took a break from photographing ragwort to explore a cut bank on one of the loess hills.  There were cacti growing right on the steep bank, which made me wonder how deeply the roots penetrated into the bank, and whether they went horizontally as well as much as vertically.

Cactus on a loess hill

Cactus on a sloughed off portion of a loess hill

Hoary (showy) vetchling (Lathyrus polymorphus) was also blooming in patches along some of the steep hillsides.  A beautiful perennial legume, vetchling forms colonies that make pretty amazing color displays early in the year.  Again, I couldn’t figure out how to photograph those patches to show how they really look, but the plants sure are gorgeous, aren’t they?

Hoary vetchling

Hoary vetchling

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Hoary vetchling.

Hoary vetchling up close.

Thanks to Prairie Plains for making this prairie available for me and anyone else who wants to visit it.  If you’ve not had the pleasure, click here to find directions.

What Do Swallows Eat on a Cold Windy Day?

Today was a cold blustery day, on the heels of some severe weekend storms.  I went down to check on our prairie (five inches of rain, strong winds, and a tornado a few miles away) and was glad to see everything looked wet but ok – including the cattle.

As I walked through the prairie, I noticed some barn swallows flying and hovering just above the surface of the wetland/pond.  Since the temperature was in the low 40’s and the winds were howling above 30 mph, I didn’t think there was any chance there were flying insects for them to catch and eat, so I wondered what they were up to.  As I watched the swallows, I realized they weren’t just wasting energy, but instead appeared to be feeding by picking insects (I assume) off the surface of the water.  It was lightly raining and I’d left my camera in the truck, so I didn’t take any pictures, but I’d never seen nor heard of such behavior before.

About a half hour later, I had just left the prairie and was starting home when I saw a big mixed flock of cliff and barn swallows behaving very similarly in a flooded wetland about a mile from our prairie.  The rain had stopped by this time, so I pulled over and got a few mediocre photographs.

Cliff swallows feeding (apparently) on floating insects during a cold blustery spring day.

Swallows resting and flying over a wetland on a cold blustery spring day.

 

A wider shot, showing one swallow in the top right corner that might be feeding.

A wider shot, showing one swallow in the top right corner that I think was feeding.

When I got back to town, I did a little quick research and found that this kind of feeding behavior has been seen before – it was just new to me.  However, I also remembered a long cold period in May back in 1996, during which scientists documented mass deaths of swallows from starvation.  At the time, I remember being told that the birds starved because of a lack of flying insects to eat during the cold spell.  I wonder why those swallows died but the ones I saw today (two different species a mile apart) appeared to be finding food…?  I also wonder if they were catching enough food to cover the energy costs of doing so?

It’s a good day when I can learn something new AND come up with questions I can’t answer.  Anyone out there have answers for me?