My Eclipse Story

Posted on by
Reply

My eclipse story was almost one of regret. My home in the Bay Area was in a zone of about 70% totality and frequently foggy, so I thought I might miss the total eclipse entirely. I was yearning to see it at our sage-grouse site in Lander, which was just inside the band of total coverage. How magical would it be to be among my favorite Monument Draw rock formations or in the ancient petroglyph site at Castle Gardens when day turns to night?

Thankfully my dad had a plan. When he suggested a trip to South Carolina, I jumped at the opportunity!

We left in the morning the day before. Although it was less than 250 miles from Durham, we were concerned about the possibility of getting stuck in traffic or not being able to find a good viewing location once we got within the path of totality. The extra day also gave us a chance for a more relaxed drive down, allowing us time to explore a long-leaf pine forest in southern North Carolina border. This is a threatened, fire-dependent ecosystem characterized by towering pine trees and limited undergrowth.

Long-leaf Pine forest on state game land near Hoffman, NC

Since we took back roads on the way down, we didn’t hit much traffic before settling in for the night in Camden, South Carolina. Eschewing the “it’s just like Applebees” restaurant next door to the hotel, we found a surprisingly decent Mexican place just north of the Camden downtown. Eclipse morning, the breakfast zone in the Comfort Inn was full of excited groups sharing their viewing plans for the day. Many were headed to the fairgrounds in nearby Columbia, SC.  We checked the weather forecasts for the umpteenth time, decided no place within easy driving distance looked any more or less likely to have clear skies, and set out for on our initial target: Pointsette State Park.  Lynn selected this place since it was

  • a little closer to the center of the path of totality, meaning a longer total eclipse
  • not in/near a large population center, so maybe less crowded than some other places
  • likely to have open areas for picnicking and recreation where we could see the sun overhead without those pesky trees.

I couldn't resist stopping for a photo of this one. Nice driveway!

Our anticipation climbed as we drove south from Camden through small towns and past stately plantation houses. It was a couple of hours before the beginning of the eclipse, but a few people were already set up with tents and umbrellas in clearcuts in the state forest land outside of the park. We were not the first, but certainly not the last people in the park itself. After estimating about where the sun would be in the early afternoon, we found a place in the thin but growing crowd, and then concentrated on not melting in the brutal midday heat and humidity.

 

At one point I escaped to the shade of the woods, and an excited young lady pointed out these orb weaver spiders (probably genus Nephila).  Not much other wildlife with the exception of some butterflies and dragonflies. Other people swam or paddle-boarded in the lake, caught up on their reading in the shade, or played cornhole.

 

We had a typical summer sky- hazy, with scattered clouds. Although the cooling effect of a thunderhead covering the sun was welcome, it made us a little nervous about the eclipse. What if we drove all this way and couldn’t see anything?

A few sunspots visible through the cloudcover

Some time after 1PM, I stepped back to my camera setup and re-centered the sun in the viewfinder. Wait, is that a little nibble! It has begun! My cries of “It’s happening” caused folks to don their solar glasses and peer skyward.

Of course, there is a long way to go between nibble and totality. The day stayed sunny and hot. Many folks returned to their blankets or spots of shade. Others were drawn to the small pinhole images of the eclipse you could see projected on the ground. My dad planned ahead and brought a colander, which was a huge hit!

Eventually somewhere around 75% coverage we started commenting on how the sunlight light was a little dimmer and the temperature was coming down a bit. The passage of time felt a little funny to me, both crawling and racing towards totality. It continued to grow darker and cooler and at last the final sliver of the sun zipped away.

Totality! There was a gasp, then a cheer from the crowd. The sky now looked like dusk, but lighter all around the horizon. It reminded me of late night at Toolik Field Station above the Arctic Circle, where the light lingers and seems to come from everywhere and nowhere at once. A few stars or planets peaked out in the deeply dark blue sky. And the corona! The black disk of the moon was now wreathed in a silvery aura. The strange and sudden darkness, the eerie twilight quality of the light, the beautiful foreign object that replaced the familiar sun… Amazing. Absolutely amazing. It is really challenging to put into words how unreal and joyous this moment was, and in the back of my mind I thought about how utterly unnerving this would feel if one were not expecting it.

We heard a few katydids call. In what seemed like 10 seconds and 10 minutes, the moon finally crossed to the other side and the sun flared back. The light was still quite dim, with the quality of a single bright but distant street light.

The famous "Diamond Ring" effect

The spell broken, people chatted excitedly while packing up, many exchanging contact info to share photos and video of the event. While we did the same, I looked overhead and noticed the sky (still with a partial eclipse) now populated with chimney swifts and barn swallows. I didn’t notice any of these aerial insectivores before the eclipse started, so it could be they were triggered to emerge and start foraging by eclipse conditions. I didn’t keep careful enough notes to add to citizen science projects like the one on iNaturalist, but hopefully other eclipse watchers around the country were able to document potential responses such as this.

I don’t know what the interstates were like, but our plan to use back roads did not work quite as smoothly on the way back. We encountered delays approaching pretty much every small town with either a traffic light or stop sign. After a stop for dinner at an Irish pub in Southern Pines, we made it back to Durham by about 9 o’clock. Thus ended our eclipse adventure, although the memories will be with me for the rest of my life.

If you missed this total eclipse, please make every effort to get to the next one on April 8, 2024. I can’t overstate how special this was, nor how big of a difference even high-90% occlusion is from totality.

I’ve got a few more photos in a public Flickr album here.

Also, I’ve written up some technical discussion on how I took the photos in separate post.

Nature Sounds Society Workshop (Part 2)

Posted on by
Reply

Sandhill Cranes

Of course, the biggest part of the workshop was getting out to appreciate nature sounds! We were fortunate to have great weather for the morning recording sessions- the heat didn’t really take over until late morning when we were mostly done.  For more about the sessions at the field station, check out Part 1.

 

 

Eric listening to the dawn chorus

The first full day saw us waking up at 2:45AM to drive from the field station to Sierra Valley on the other side of the pass. Our caravan parked along a gravel road in a marshy area at about “nautical twilight”- that time before sunrise when the sky lightens enough to accurately discern the horizon line. We spread out along the road as the eerie pulsing “winnow” of Wilson’s snipe sounded out of the darkness. Gradually the sky became lighter, and we were treated to a whole range of sounds including bullfrogs, sandhill cranes, 3 kinds of blackbirds, meadowlarks, cows, and one of the most powerful and prolonged coyote chorus that I’ve ever heard. I can only speak for myself, but it took every ounce of restraint not ruin 18 people’s sound recordings by yelling “Holy crap that was amazing!” (we were specifically warned not to do this the night before)

A Brewer's Blackbird pauses on a fence line in Sierra Valley

Our next stop was a one-lane bridge a little farther up the road. The bridge hosts a large colony of cliff swallows, so we were treated to the sights and sounds of hundreds of swallows darting and wheeling around us.

Cliff Swallows, Sierra Valley

After a quick stop to eat (coffee, breakfast sandwiches, fruit, homemade muffins and granola- the organizers spared no effort to keep us happy and powered up!), we headed to a forest meadow site called Carmen Valley. It was getting hot and summer insect sounds started to replace bird vocalizations before too long, although we did see some of the typical Sierra Nevada birds like White-headed Woodpecker, Lincoln Sparrow, and Mountain Chickadee. Most exciting was surprising a young bear with unusually blonde fur. The bear was definitely more scared of us than we were of it.

Brewer's Blackbird

The next morning we woke up at the leisurely hour of 3:15 AM to check out the dawn chorus at the Yuba Pass summit just a few miles up the road from the field station. The mosquitoes finally found us up here, but even so, it was well worth it to hear the forest come alive. There’s not much that beats hearing the ethereal flute-like song of hermit thrushes in a towering forest or the sounds of a sapsucker’s drumming echoing among the trunks. It was also a treat to see several flocks of Evening Grosbeaks along the side of the road.

Dawn light, Yuba Pass Summit

Male Evening Grosbeak

Beautiful scenery, great wildlife, and intellectual and aesthetic stimulation. What could be better than that! I definitely hope to return one day, and would recommend others with similar interests in nature sounds and soundscapes to check out the Nature Sounds Society and the field recording workshop in particular.

Nature Sounds Society Workshop (Part 1)

Posted on by
Reply

Alan La Pointe recording in Sierra Valley

I’ve spent a decade recording sage-grouse pops and whistles, and yet this weekend I felt like a novice. And that’s a good thing! I had the amazing good fortune to be invited to give a talk at the 2017 Nature Sounds Society Field Recording Workshop. This was one of the first times I’ve gotten to interact with serious nature recordists. I’m talking about people who sweat the details of getting the gear and technique right to capture what it feels like to be somewhere else. I’ll freely admit that I’m much more of a data collector, and it was wonderful to spend time with these folks who seem to bring together the best parts of aesthetics, technology, and love of nature.

The workshop, the 33rd of its kind, was held at the Yuba Pass field campus of San Francisco State University (north of Truckee, California). This is a gorgeous field station nestled among towering pines near a rushing river in the Sierra Nevadas. We slept on surprisingly comfortable cots in large tents on raised platforms. Meals and lectures were held in a 2-story main building where our class would mingle with other station users and staff. We had, in my opinion, a perfect combination of amenities: Hot water– Check. Flush toilets– Check. Cell service– Not Available.

Looking up at the Yuba Pass Field Campus

In the evenings, organizers Dan Dugan and Sharon Perry along with tech consultants Greg Weddig and Steve Sergeant helped us test our recording gear to prepare for the next morning. We were also invited to test out and borrow spare equipment. Mauricio Shrader, a birding-by-ear instructor, provided helpful tutorials, on what to listen for while out in the field.

For me, it was really valuable to hear so many perspectives on nature sound recording. Steve Seargent led a roundtable discussion about how best to set up a relationship with a state or national park and provide valuable services in documenting their soundscapes. Jim Metzner, host of Pulse of the Planet, shared several enchanting clips from his decades of travel and interviews, and gave his perspective on what it meant to capture an audience’s attention and imagination with sound. I spoke about the role of sound in sage-grouse biology and conservation.

As someone who last shopped for audio gear more than a decade ago, the hands on demonstrations were particularly interesting for me. Dan, Greg, and Steve set up a selection of more than a dozen different kinds of microphones, from omni to shotgun to parabolas, along with several stereo rigs. It was so cool to be able to put on headphones and test them all out. Sharon led the apparently famous “Build your own windscreen” workshop too. I’ve now got a shaggy shotgun windscreen that looks like a cross between an opossum and a giant hotdog!

Lupines dot the ground around the field campus buildings

Of course most of the best parts were getting out to some beautiful spots to record. I’ll talk about that in Part 2.

2017 Field Season

Posted on by
Reply

For the first time in more than a decade, I will not be out with the sage-grouse this season. I’ll be teaching in Davis for both the winter and spring quarters. That means I’m able to help a bit with the on-campus video projects, and look longingly at field updates from Gail and Ryane. I’ll definitely miss seeing the sage-grouse and their antics, watching spring try to overcome winter’s grip on the landscape, and our local rituals (I can almost taste a Bonzai Burger with a pint of Rockchuck Rye at the Gannett Grill in Lander).

For those of you wanting to follow Chicken Camp, you can check out Ryane’s twitter account @RyaneLogsdon. Word so far is that the beginning of this season looks like the end of last season, with a very wet landscape.

Turkey/Cat Video

Posted on by
Reply

Wild turkeys occasionally do goofy things, and when someone captures that behavior on video, I sometimes get contacted to try to make sense of it all. This happened last week, when a video of a flock of turkeys walking in a circle in the middle of the street around a dead cat went viral. I was quoted in articles at a website called the Verge, as well as NPR and Fox News.

About the video- which shows a flock of more than a dozen turkeys walking slowly, clockwise, at a distance of a few meters from a road-killed cat. There are a few aspects to consider:

Why do they care about a dead cat?  My thought on this is that the behavior looks like predator inspection behavior. This is a reaction to learn about a predator that does not pose an immediate danger (as a sprinting carnivore or soaring/diving eagle might). The behavior we see in the video indicates the turkeys are attentive to the roadkill, but nervous about it (keeping their distance, and also staying in motion so that they can flee more quickly). This behavior could do a few things. They could gain additional information about this particular predator (is it sleeping, will it wake up, is it about to pounce). The inspection could ensure everyone in the flock sees it and in particular that younger birds can learn about potential danger. Finally, this kind of behavior would alert a predator that they are discovered, and that an ambush attack is unlikely to be successful. For this last possibility, it resembles mobbing behavior that is found in a variety of species.

I’ve seen somewhat similar behavior when a coyote approached a flock of turkeys. The flock was alert and alarm calling, and parted as the coyote walked through. They seemed to want to keep an eye on the predator while not getting too close.

A slightly different version of this is that the turkeys may see the dead cat as something unusual and novel in their home range. Thus it could be that they don’t start by knowing the cat is a predator (or similar enough to natural predators like bobcats), but instead are inspecting to find out the danger level of this new thing they’ve stumbled across. Functionally this would be pretty similar to what I describe above.

Why are they moving in a circle?  Probably the oddest thing about this video is not that the birds care about a dead cat, but rather the eerie sight of them walking in a circle. I think there are two parts to this. First, their movements are governed by the tension between wanting to observe the cat, but also being fearful of it, which results in remaining motion but at a relatively fixed distance from the cat. Too far, and they couldn’t see what’s going on, but a closer approach may be risky if the cat is a crouched bobcat instead of a dead housecat.

When turkeys are foraging they often spread out, but if they are just walking from place to place, they may move in single file. This follow the leader behavior may have something to do with the circling behavior as well. In particular, I think the size of this flock of turkeys was coincidentally perfect to create a perpetual circling motion of the flock. Possibly as the first bird continued the circular trajectory around the cat, it caught up to the last bird, who was just arriving to inspect the cat. The effect would be like the head of a conga line catching up and starting to follow the person at the end of the train.

I’ll note that for whatever reason, turkeys seem to have a propensity to get stuck in these circular movement loops. I’ve seen (in person and on youtube) fairly persistent circling behavior in much smaller groups of male turkeys exhibiting various forms of chasing or aggression.

How does this relate to other animal “funeral” and “mourning” behavior? This is a big topic and I’m not going to attempt to review everything here. Some birds are known to have “funerals”– mainly corvids like crows and magpies. My former labmate Teresa Iglesias studied ‘cacaphonous aggregations’ of scrub jays in response to the presence of a dead jay. In a lengthy set of experiments, she compiled evidence that the response to the dead jay is similar in some ways to the response to a predator, and that the behavior of recruiting other jays is likely related to the potential cue of risk that a dead jay provides. I don’t mean to suggest all such mourning behavior in animals falls under this hypothesis, but I do think it shares similarities with the behavior we see in the turkeys.

Of note- I AM ALWAYS INTERESTED IN SEEING THESE VIDEOS, AND THERE ARE VARIOUS QUESTIONS THAT COULD BE ANSWERED WITH ENOUGH EXAMPLES, SO PLEASE FEEL FREE TO ALERT ME ABOUT ANY NEW VIDEOS THAT YOU SEE.