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Brief Update and A March 2017 Compilation

Compilation of Calls and Knocks from Matt’s March 2017 Recording

I had reason to listen to this clip yesterday and realized that I’ve not previously posted it. It includes amplified selections, greatest hits, from the March 2017 recordings – numerous calls and some knocks, including several in apparent response to Matt’s banging with wooden blocks. At this point, I’m not even sure who made it, probably Steve Pagans. In any case, it’s worth a listen, especially if you haven’t heard the recordings before. Headphones aren’t a must, but they’ll help.

The calls are not a perfect match for the known ivorybill sounds recorded in the Singer Tract, but they are similar in many ways. They are also consistent with historical descriptions of ivorybill calls. They do not seem to match any known North American animal. The fact that the suggestive calls and knocks occurred during the same event lends further weight to the idea that Ivory-billed Woodpeckers are the source of the sounds (which seemed to come from more than one source).

Similar sounds are heard rarely in the area, and we have recorded some. The events of mid-March were unique, however, in that the calls were heard in the same location on multiple days, and on the morning of March 15, they continued for hours and numbered in the hundreds. Since that time Matt recorded three calls in April 2018 and Guy, Jay, and I heard similar sounds on New Year’s Day this year.

We are gearing up for a more intensive search effort as the season heads toward its peak. More about that in upcoming reports, so stay tuned.

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Yamp-Yamp-Yamp: Trip Report, 12/28/18-1/4/19 (Approximately)

This trip had its ups and downs, including a couple of possible encounters on New Year’s day (discussed below). Weather and accompanying high water posed major problems. Flooding was unprecedented in my experience, and much of the core search area was inaccessible. With three inches of rain predicted for my last two field days, I cut my stay short and went to New Orleans to avoid possible flooding, catch up on some work, and for a little R&R (and chaos).

There were also technical problems – trouble navigating a new camera and my recording device (a replacement for one lost in the field last trip). I’ve included a few of my own photos, though they are not up to my usual standard for posting. The vast majority are courtesy of Erik Hendrickson.

I was in the field from December 29-January 1, as was Jay Tischendorf. Erik arrived the day before and remained until January 4. We were joined by our newest team members – MW, Louisiana-based photographer, who has been doing great work surveying the area and surroundings, developing a more comprehensive picture than I have been able to manage, and Guy Luneau, who arrived on December 31 and was making his first visit to the search area. Guy is a very accomplished birder with great hearing and a deep knowledge of bird calls, especially those of the southeastern US.

It was unnerving to discover that some upland areas have been marked for logging, down to the very edge of the core search area, and within perhaps fifty yards of the location where the March 2017 recordings were made.

Border of upland area marked for logging
27″ DBH pine marked for cutting.

High water was a major obstacle. On New Year’s day, Guy and I wore chest waders, but it became apparent, within about 20 yards after leaving the uplands, that water would be over our heads in some of the sloughs. I’ve never seen conditions like this in the area. Click on an image in the gallery to see them the full-size photos.

On Saturday, December 29, Jay, Erik, MW and I tried to reach the northern group of trail cams. After entering the bottoms, crossing on the log shown above, we were able to reach the northernmost of the cameras but were unable to go more than about 100 yards beyond it. I’ve reviewed the card; there was no new woodpecker activity and a couple of very brief squirrel visits to the scaled patches. There was no observable change to those surfaces.

On the 30th, seeking higher, dryer ground, we visited an upland area in the floodplain of a small stream. This is a patch I’ve wanted to explore for some time, since our logging history map shows an entry date of 1910. As is the case in areas where pine has been cut, stumps from the pre-chainsaw era were scattered around. The forest is not terribly impressive, probably due to soil conditions. There were few dead and dying hardwoods, but we saw several patches of recently dead and debarked pines.

MW departed and Guy Luneau joined us on the morning of New Year’s Eve. We tried an alternate route to the unserviced northern cams. This required a much longer traverse of upland areas, including a large parcel marked for cutting (the blue tagging on the trees shown above is one boundary of the area to be logged). Unlike the other plot, where the larger trees are being taken, this appeared to be more of a thinning operation. It is still unnerving, and there seems to have been an uptick in logging operations in areas that I believed to be protected.

When we got to the bottomland, near the location of the March 2017 recordings, we found it completely flooded and were unable to enter, let alone get anywhere near the cameras. Although we’ve been careful to deploy cameras near head height whenever possible, I suspect that we’ve lost several, possibly as many as 6 of our 8 functioning units, to the flooding. Team members will be returning to check on the cameras within the next couple of weeks.

All the excitement took place on New Year’s Day. There had been a little break in the rain, and we hoped to reach the southern cluster of trail cameras. It soon became clear that this would be impossible. In the southern area, the bottom is considerably wider than where the other cameras are deployed. Here too, water reached the edge of the uplands, and the first slough, which can usually be crossed in ankle-high boots, was completely out of its banks, with water crotch deep approximately 20 yards from where the edge should have been. We messed around on the edges of the bottoms for a while, but found no entry points. At a little after ten, we decided to do a double knock series.

As was the case for most of the trip, woodpecker activity was lower than normal, and double knocks were less productive of responses from other species than is usually the case. As a result, I did a fairly aggressive series over a five minute period. About 15 minutes after I finished, Erik and I, who were standing and positioned somewhat closer to the sound, heard a distinct single knock – clearly a blow to a woody substrate and not an industrial sound or gunshot – at an estimated distance of 300 yards. (I said 300 yards or more; Erik said 300.) The sound was isolated and not associated with foraging knocks or other woodpecker drums. Unfortunately, I thought my recorder was running at the time, but such was not the case.

Stymied at this location, we returned to our vehicles to see if we might be able to reach the bottoms by a different route. We were able to do so, and to walk along a higher stream bank, penetrating a mile or so into the core habitat before an uncrossable slough blocked our progress. At around 1:30 pm, we were walking downstream on the bank, when Guy stopped us, having heard some interesting calls. Jay heard them next, a little less well. I was the last in our party to hear them, and they were at the very edge of my hearing.

We attempted some Blue Jay playbacks and also some playbacks of the March 2017 recordings (using an iPhone without external speaker). Neither produced a response. And we noted no Blue Jays calling at the time.

In the discussion that followed, it became clear that two sources were involved. Guy said that, while they did not sound like the Singer Tract kents, they were somewhat similar to the calls we recorded in March 2017 and were unlike any Blue Jay he had ever heard. Jay agreed that they did not sound like a Blue Jay. I thought I noted what I describe as a creaky quality that I associate with Blue Jays, but I heard the calls least well, can’t be sure, and trust Guy’s ear more than my own. Regardless, the descriptions of the calls are what I find most interesting.

On the spot, Jay gave “Yamp-Yamp-Yamp” as a transliteration of the sounds. This transliteration appears in the literature and is rather obscure. While it is mentioned by Steinberg, Jay was unaware of that reference or its source, George Lowery, who used it in his Louisiana Birds, now out-of-print.

More on “Yamp” as a transliteration below. Suffice it to say that the variability among transliterations and descriptions of ivorybill sounds, including but not limited to “kent” and “yamp”, is indicative of a considerably broader range in pitch and duration than the Singer Tract recordings and the strict parameters used by Cornell in Arkansas would suggest.

Guy, too, used a variant of “yamp” to describe the sounds, as shown in these excerpts from his field notes:

The documentation that I wrote down for myself on what we heard on the afternoon of 1/1/19 was “a whining, nasal, rising yaaAMP, yaaAMP, yaaAMP, yaaAMP.”  I think in my renditions on-the-spot I was verbalizing “waaANK, waaANK,…”.  

Nasal” was my own word, not having remembered (or known) anyone having used the term in days gone by in reference to ivorybill calls. I am curious as to whether any of our forebears have also described a rising inflection in any ivorybill calls. The kents I heard from the Arkansas bird in October 2005 did not have a rising inflection.  They were the sharp single kents and a few double kents (the doubles being HIGH-low) with a tin trumpet quality, distinctly different from what we heard on 1/1/19.


I have never heard before in my life what we heard on that afternoon.  There were no archival matches.  I think you could probably tell by my expression and reaction that I was stumped in North America for the first time in a very very long time. A couple decades, I’d say.

I’m aware of a reference to Lester Short using “yamp” in discussions about the Cuban ivorybill, but as far as I know, the published references all come from Lowery’s Singer Tract observations. Interestingly, Frank used it too, in our first email exchange.

Here are several descriptions from Lowery:

    “The birds were feeding energetically on dead stumps and low trees, and were calling frequently with their peculiar, nasal, rather high-pitched yaamp-yaamp until finally disturbed, after which they retreated to the taller timber and were lost from sight.”

 John S. Campbell, J. J. Kuhn, George H. Lowery Sr., George H. Lowery, Jr., “Bird-Lore’s thirty-fourth Christmas census (Tallulah, La.).” Bird-Lore 36 (1934): 55. 

Through the woods came the loud clear, high-pitched, “yaamp-yaamp,” unmistakably the call notes of the ivory-billed woodpecker.

Its notes are clear and distinct, and yet rather plaintive. They may be heard at a considerable distance, perhaps a half mile, and have been likened to the false high notes of a clarinet or a ten-penny horn. From my experience I would not say that the notes are repeated any definite number of times in succession. As mentioned before, the notes can be described as a monosyllabic “yaamp-yaamp” with a decided nasal twang.

George Lowery, Jr., “The Ivory-billed Woodpecker in Louisiana.” The Proceedings of the Louisiana Academy of Sciences 2, (1935): 84-86.

. . . our ears strained for only one sound – the high-pitched, nasal yamp, yamp, or as some people interpret it, kent, kent of an ivorybill.

(3) a high-pitched nasal call note that may be described as yamp, yamp, yamp instead of a flicker like, deep voiced, cuck, cuck, cuck.

George Lowery, Jr., Louisiana Birds (1955), 415-419.

I don’t think Frank had read Steinberg when he wrote this in fall 2008, and I’m almost certain he was unfamiliar with Lowery’s book, which was long out of print by then. Frank was a musician and had an excellent ear.

Odd you should mention “yank”…Sounded more like “yamp” to me…very first sighting in 93-94 bird made noise like that twice. When told that to ******** LA Natural Heritage Foundation, he said not IBWO and bye now….Have heard similar sounds in HZ…Have some recorded…Will not make you listen unless you ask;-)…

Frank Wiley, October 2008.

I don’t recall what became of those recordings but it’s intriguing that this little-known transliteration has been used more than once to describe sounds heard in Louisiana.

I’ve heard many stories like Frank’s. He was remained annoyed by his treatment over the “93-’94” bird and talked about it often. The incident illustrates how easy it is for local reports to die in desk drawers and how only a limited number of them reach those who keep track of such things. Several years after Frank sent that email, we met the official; he had no memory of the incident.

It’s always encouraging to have possible auditory contacts, which are infrequent but which often seem to come in clusters. Nevertheless, I’ve become somewhat jaded and tend to minimize their importance. Guy and Jay (for whom it was the first possible encounter) were a lot more excited than I, but for my part, I can safely say that I always enter the habitat with some hope but very low expectations. Every possible encounter is a surprise.

Finally, here are some of Erik’s pictures from the trip, and three of mine, including his first Red-cockaded Woodpecker captures.



Project Coyote’s Future and Two Trip Reports from March

The audio obtained in March took precedence over the trip reports and a few other things I’ve been meaning to address for some time. They’re worth a listen if you haven’t done so already.

Longtime readers of the blog have probably noticed the donate button and the advertising that now appears on the site. Project Coyote has been mostly self-funded from the start, except for a few donations from anonymous individuals and the Rapides Wildlife Association. Some used equipment has been passed on to us by other groups of searchers. I’ve long believed that we’d be able to document ivorybill presence (or go a long way toward ruling it out) with more consistent coverage in the area and a relatively modest budget.

At this point, remote recording units and a couple of additional cameras are at the top of the wish list. Ultimately, I’d love to be able to cover costs for our core group and to provide funding for one or two people to be in the area steadily, at least during February, March, and April. I can dream . . . Anyway, your contributions can help make some of this possible.

Before Frank’s passing, I had decided to ‘retire’ from active searching after this season, for a number of reasons – the sense that I had nothing further to say about feeding sign and the fact that I did not personally see or hear anything strongly suggestive of ivorybill presence in the 2015-2016 season among them. The lack of recent work on hickories was particularly discouraging.

Things started to change when Frank was in the hospital. It became clear that our search was important not only to Frank but also to his family and friends. A number of long-time, mostly quiet, enthusiasts and supporters (including Matt Courtman who had visited the area with Frank some years ago) reached out and encouraged me to continue and even to intensify the effort.

Shortly thereafter, Phil Vanbergen found some recent scaling of the kind that I think is diagnostic for ivorybill on two hickories, though it turned out the work was not as fresh as initially suspected. The trail cam capture of a PIWO removing a strip of bark from one of the trees led me to begin my first March trip in a somewhat pessimistic frame of mind. It didn’t take long for that to change – another ride on what I’ve taken to calling the IBWO-llercoaster.

I arrived in the search area on March 9 and met up with two out-of-state birders with whom Frank and I had been corresponding for some time. I showed them around the search area. They were impressed by the habitat, but we did not see or hear anything significant. On the morning of the 10th, I sent an email to some of the team expressing my frustration over not having had a “compelling recent encounter” and stating that my possible October sighting didn’t meet that standard (even now, I don’t think it compares to the March recordings.)

I was on my own on the 10th and had a slightly less discouraging day; I got my first opportunity to examine the scaled hickories Phil had found. This strengthened my suspicion that the recent PIWO work was “wake feeding”.  Later, I met Matt for dinner and a strategy session.

Everything changed on the 11th. In addition to satisfying myself that the extensive scaling on the hickories was at least several months old and that the recent Pileated activity was likely secondary scaling (based primarily on the small bark chips); over the course of the day, we deployed three of our four trail cameras.

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Even more importantly, we had auditory encounters in both the morning and the afternoon. Here is my write up from that day, with a few redactions.

At about 10:15, we were in close proximity to where we’ve had several possible contacts, most recently when I was out with Frank in October. We’d just deployed a second trail cam, and Matt had gone about 50 yards north and west of Phil and me. He texted and asked if he could do some DKs (he’s using two wooden blocks that he knocks together.) He did several, no particular pattern, mixed ASKs in with the ADKs.

I did not take notes, and my memory of the exact sequence is weak, but I heard 5-6 DKs and SKs coming from the east in response. If I remember correctly, there was at least some interplay between the ADKs and the DKs, meaning that there were a couple, and then a pause, then Matt DK’ed and there were replies. Matt said he heard 4-5, and I think Phil said he heard 3-4.

Whether or not I’m misremembering, it was far and away the most compelling series of responses I’ve ever heard, and I’ve done hundreds of ADK sessions. **** this was similar to what you encountered on your first trip, in the same general vicinity, but a lot more dramatic. In addition, there was no ambient foraging, and other than the responses, all we got was one PIWO drum from a different direction. Phil said that one of the DKs was very similar to the Pale-billed DKs he heard in Costa Rica last summer. 

For the kents, we were at a different location a few miles away; the time was approximately 2:45 pm. Phil and Matt heard a number of calls, of which I only heard two. Of the two I heard, the first was on the low-pitched side, I’d say close to the pitch of the what Tanner called “conversational” calls on the Singer Tract recordings or what Frank and I called the “wonka wonkas”; it had a trumpet-like quality, maybe more than I’d expect for an IBWO, but still in the ballpark. The second was higher pitched and more tooty/reedy, very close to the Singer Tract recordings. The wind was dead calm for the second call, so it was not a tree squeak. In both cases, the calls came from the East.

. . . 

So there we are. Quite a day. Now, if we could only find out what’s making the sounds and what’s knocking the bark off the hickories at the outset.

For those who missed it, here’s Phil’s recording of two of those calls – headphones or good speakers recommended. We did not record the knocks we heard in the morning.

On the 12th, Steve Pagans, Matt, and I returned to the location and heard 1 ambient DK and 2 SKs, at approximately 1:55 pm.

These sounds came from roughly the same direction as the calls we’d heard the day before. The possible DK was not as loud as the SKs, or as yesterday’s knocks, but it was distinct. Matt did some ADKs. There was a Red-bellied Woodpecker foraging to the south of the direction of the knocks. Matt’s ADKs seemed to induce it to bang more frequently and forcefully, but we didn’t hear any distinctly IBWO sounding knocks in response. Steve and I heard a single possible kent from the same direction as the possible SKs and DK. It was faint. Steve heard it better than I did and thought it was good; Matt didn’t hear it all. This was probably due to how we were positioned in terms of proximity to the sound.

Under normal circumstances I’d label this episode as a fairly weak possible, marginally worthy of mention on the blog. But given the location, it seems more significant.

The 13th was also eventful. Matt and I opted to return to the area where we’d heard the knocks on the morning of the 11th and give the other location a rest. Here’s my write up of the morning’s possible auditory encounter.

We decided to do a mix of playback and DKs at 9:40 AM. I did about a minute and a half of playback, using the iBird app (3 rounds – 28 seconds of Kents, “conversational” calls, and tapping). Matt followed with perhaps a minute of knocking wood blocks together. Over the course of the following five minutes, we had several knocks. Initially, Matt heard a single that I think I missed. It was followed by a very loud knock coming from the East. It was VERY loud and clear, what Frank would have described as some banging on a tree with a baseball bat. Shortly thereafter, another sound came from my left, roughly north of us. Matt heard it as a single, but I heard it as a double, with the second to my ears perhaps the closest thing to what Tanner described as an echo of the first I’ve ever heard. After that, we heard another loud single roughly from the southwest. The last was more distant and somewhat less striking.

The first single knock and the one I heard as a double were astonishing. There’s no doubt in my mind or his that these were neither mechanical sounds nor foraging. I am kicking myself hard for not having my recorder running; I’ve gotten too jaded about auditory encounters, and it’s a little tough to manage both recording and generating sounds.

A little later, I found a dying chestnut oak with some mildly intriguing feeding sign. There were some huge, thick bark chips on the ground and this, more than the appearance of the work on the tree, struck me as potentially suggestive; this is the first interesting work I’ve found on an oak in several years.

Matt and I returned to this location on the morning of the 14th. Matt did ADK series on the half hour until shortly before noon. It was a cold and windy morning, uncomfortably so. We heard nothing of interest.

On the 15th, I headed for New Orleans and my flight the following morning. Phil and Matt returned to the woods and captured numerous calls between 7 and 11 am. When I heard the recordings I cleared the decks and made arrangements to return as soon as I possibly could.

Patricia and I were back in the woods by lunchtime on the 23rd. Louis Shackleton – a good friend, professional photographer, and birder who happened to be in Louisiana – joined us on the 24th. We didn’t see or hear anything of interest and left early ahead of predicted heavy rains.

At shortly after 11:00 am on the 25th, Patricia and I heard some possible double knocks in apparent response to some very aggressive knocking on my part; two of these knocks came from roughly north and one from the east (the same direction from which the March 15th calls were coming).  I’m still reviewing the audio from this trip and may have additional material to post in the future.

I went out alone on the 26th, returning to the same vicinity, and did not see or hear anything interesting.

We were rained out on the 27th. On the 28th, I found a large cavity not far from where the calls were recorded. It does not appear to be fresh enough to be a recent nest, but we plan to target it with a trail cam in the event that it’s being used as a roost. This find illustrates how difficult it is to spot cavities in our search area – six people had spent the better part of multiple days in the immediate vicinity before I noticed it, and the snag is in plain view.

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More storms came through on the night of the 28th, and the next morning Patricia and I decided to take a break from the “hot zone” and instead visited the area where Phil found the recently scaled hickories and where Matt, Phil, and I had heard knocks on the 11th and 13th. We found that one of Phil’s scaled hickories had lost its top, which gave me a chance to examine one of the scaled areas up close. As expected, the wood was somewhat punky, and and the bark was fairly easy to remove by hand.

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We also discovered that the top of one of our target hickories had been blown off. The tree shows signs of beetle infestation, which gives us reason to hope that it will be visited by woodpeckers before too long.

It was interesting to get a close look at this freshly fallen top and examine how hickory bark separates from the trunk under these circumstances. While it seems to come free fairly easily in very large strips, the bark is extraordinarily tough and strong. When fresh, it’s flexible but very hard to break; doing so requires twisting, and it won’t fracture. Within about 48 hours the piece I collected had dried out and become surprisingly hard. This further reinforced my view that Pileated Woodpeckers are not anatomically equipped to scale large chunks of bark from live or freshly dead hickories.

It was a beautiful day in the woods, and some of the other highlights included recently hatched Wood Ducklings, a posing Yellow-crowned Night Heron, and the first ‘gator (a small one) I’ve ever seen in the area.

The next morning, I returned and redeployed a second camera, which had been trained on another nearby hickory, to the one with the downed top so that we can cover the entire stub.

We spent the morning of the 31st in the area where the calls were recorded before catching an afternoon flight. We did not note any interesting sounds while in the field, but after listening through Patricia’s recordings, I noted the possible double knock discussed in the previous post.

I’m planning two more trips before summer. I anticipate that we’ll have all cams deployed and have high hopes for the hickory stub.

Meanwhile, I thought I’d throw in some additional images that may help to convey what a special and magnificent place this is.