A Serious Swoop of Sandhill Cranes

It's never easy to get up early on a Saturday morning (and by early I mean at 4:30 AM), but when there is good reason, I am all for it. Last weekend, Brian Miller, Lynn Vernon, and I joined Kip Miller and several other members of the Berrien Birding Club on a trip that started out with us meeting at Jasper-Pulaski Fish and Wildlife Area at 7:15 AM. Our purpose? To see a swoop of Sandhill Cranes (Grus canadensis), of course!


We certainly weren't the only lunatics with the idea of braving one of the first really cold mornings of the season. Birdwatchers, photographers, and nature lovers alike flock to J-P annually to witness this event, and sometimes I can't help but wonder if the cranes are there to watch the people.


Just like every other November, the Sandhill Cranes did not disappoint. Each fall (and to a lesser extent in the spring), thousands of Greater Sandhill Cranes flock to the area surrounding Jasper-Pulaski during their migration from Canada, Minnesota, Wisconsin, Michigan, and northern Indiana nesting grounds to their warmer wintering grounds in southern Georgia and Florida. During their stopover, they spend their days feeding mostly on grains and insects in agricultural fields, and their nights roosting in marshes, but the real spectacle is to see them congregate and socialize in Goose Pasture. When we were at J-P, their numbers totaled approximately 13,000. As of November 30, 2010, just two days later, almost 17,000 Sandhill Cranes were tallied. The highest number of Sandhill Cranes ever seen at J-P was in 1991, when 32,000 individuals were estimated.


Lindsay and I have visited J-P several times over the past ten years to see this event, but this trip was different. All of the other times we had made the hour drive to see the cranes, we had done so in the evening, just before sunset. Kip organized this trip for the opportunity to see the enormous, hungry flocks leaving for a day's worth of feeding.


It was definitely worth getting up early, making the long drive, and standing out in the cold!


As the cranes lifted off, their gutteral, rolling, trumpeting chorus blocked out nearly all other sound. As they made clumsy landing approaches with necks, wings, and legs extended, they reminded me of parachutist dropping to the ground.


It is difficult to get an idea of scale in these photographs, but if you've never seen a Sandhill Crane before, these are big birds. They stand approximately four feet tall and have a wingspan of six to seven feet.


As many times as I have been to Jasper-Pulaski Fish and Wildlife Area, I never tire of going back to see the cranes. If you are within a couple of hours of northwest Indiana and you have never been to J-P to see the Sandhill Cranes during migration, I recommend that you make the trip.

Change You Can Believe In

No... nothing political. The change I'm referring to here is change that happens in the Midwest every year around early March. This change is the dreary winter waking and rubbing the crust off its eyes as we transition into the budding spring that is full of life. I had seen a few signs of this transition in late February (the return of a few Red-winged Blackbirds, early insects crawling around, increasing hours of daylight, etc.). But with the 60+ degree temperatures this weekend, numerous drastic changes were evident, making me think that we've almost turned the corner. Below are seven signs of spring that I have noted in the past few days.

1. On Friday, while in a meeting in my office, I was distracted by the obnoxious but welcomed "kill-dee... kill-dee..." song of the Killdeer (Charadrius vociferus), our earliest arriving shorebird; I observed several Killdeer while driving yesterday between North Liberty and LaPorte, Indiana.

2. Saturday and Sunday, the reverberating "kar-r-r-r-o-o-o" of Sandhill Cranes (Grus canadensis) could be heard nearly wherever you were. These huge birds were present in many of the corn fields I drove past, and I even observed the flamboyant mating dance while I passed at 55 mph. Sandhill Cranes can also be seen soaring overhead throughout northern Indiana this time of year.
3. While we have been seeing Red-winged Blackbirds (Agelaius phoenicius), Rusty Blackbirds (Euphagus carolensis), and Common Grackles (Quiscalus quiscula) since early February, they have seemingly exponentially multiplied in the past week. It is rare to be outside and not see Red-winged Blackbird males scouting out territories right now, though I don't think the majority of female Red-winged Blackbirds have made their arrival yet.
   
4. Friday and Saturday afternoons, the "c-r-r-r-r-r-r-e-e-e-e-e-e-k" calls of Western Chorus Frogs (Pseudacris triseriata) echoed through wetlands and surrounding uplands. What a welcome and beautiful call!
5. In LaPorte County on Saturday, I came across a very cold and nearly immobile Eastern Gray Treefrog (Hyla versicolor) on the ground. I had never seen a representative of this species this early in the year.

6. The silver maples (Acer saccharinum) in our yard have begun to bloom. Most people I talk to who aren't botanists are surprised that trees even have flowers. If you look closely this time of year, you will see the spreading yellow stamens and reddish pistils of these small clusters of flowers.
7. Finally, yesterday at Kankakee Fen northwest of North Liberty, I saw skunk cabbage (Symplocarpus foetidus) in bloom. This is our earliest blooming wildflower in this part of the world, as the plant is capable of producing heat (a process called thermogenesis) that allows it to thaw surrounding frozen ground and push its floral structures through to the surface, even if snow still covers the surrounding landscape. The flowers of this species are located on a spadix that is hidden within a splotchy maroon- or green-colored spathe. If you're wondering why this plant is called skunk cabbage, try breaking a spathe or a leaf (which appears later in the year, as the flowers wither away). Your nose will quickly give you the answer. This "foetid" odor benefits the plant by attracting pollinators such as flies and bees.

The extended weather forecast shows colder temperatures and the potential for snow later this week... but, not to fear... spring will undoubtedly be here soon. During the unchartered and difficult times currently facing our nation and the world, no one yet knows if we will truly see the change promised us by our new leader. However, I can guarantee that if you look around outside, you will see the blossoming of a new and uplifting season.