Getting closer

Time is flying before the field season.  It has been insanely busy trying to get some projects to a point that they can be left for a few weeks while we’re in the field, while at the same time getting set to actually go to the field.  We have been ordering things, and waiting for them to get here so we can build things, or pack things or prep meals or…   And of course, this being the Arctic, shipping delays abound.  However, we have gotten the replacement cover for a Weatherport, all the recalled transit batteries, extra new batteries for the handheld radios, Rite in the Rain paper for field forms, the refurbished iPads, the nice new big First Aid kits, chaining pins, Sharpies (lots of Sharpies) and a bunch of other goodies.  I got my new tent stuff sack (the original lasted one trip, and all the duct tape in the world isn’t enough to hold what’s left together if I actually put the tent in it) and my InReach.  We are still waiting on the parts for a water screening station, and the dry goods.

The lab looks a mess, because everything is still out from the inventory, and needs to be packed, but some of the things to pack it in are part of the freight.  Not optimal, but it will sort itself out.

The freeze and chill food got in, and Kaare will be working with the volunteers to prep a lot of meals to freeze before we head down.  That is, once there are enough volunteers here.

The first of the volunteers were to get in Tuesday night, but the plane couldn’t land, so they all wound up heading back to Anchorage, getting in quite late.  One got on the early flight today on standby, but the rest are now coming tomorrow morning.  I figured maybe 2 nights in Anchorage would be a student budget-buster (having slept under some stairs once when stranded in England for a week on the way home from the field–Laker had raised ticket prices over the summer and I didn’t have a credit card), so I posted on a couple of northern archaeology Facebook groups, and had 5 offers of places to stay from folks in Anchorage within a couple of hours.  In the end, folks couldn’t get refunds for the nights they paid for (a downside of online booking, I guess), but if anyone else gets stranded overnight on the way in or out, at least I’ve got a bunch of phone numbers and we should be able to help out.  Gotta love Alaskan archaeologists.

Kaare made it to Walakpa, although there is still snow on the beach.  There has been a good bit more slumping, but it looks like the overhanging block that was making access so dangerous has fallen, which is a good thing indeed.  The plan is to try to take some of the heavy stuff down tomorrow, although that may change depending on if the freight makes it in.

We’ve also got a survey to finish before we go (only got the go-ahead a week ago) and maybe a desktop study as well, depending on their timeframe (just got the go-ahead today).  Oh, and a proposal, which was just requested yesterday.

And I need to finish making sense of a bunch of dates which I have calibrated for the WALRUS project.  It looks like we have decent ranges for many of the sites based on the caribou dates.  There are a couple of sites that are confusing (possible reverse stratigraphy in big mounds) and I haven’t been able to get copies of the field notes or talk to the excavators yet.  I’ve calibrated the walrus dates using the marine curve, and it is clear there is not a standard offset from the terrestrial dates.  I’m redoing it using the best available local delta R, but I know the one for Barrow is off by several hundred years (if you use it there are a lot of bones from archaeological sites that it indicates will be dying in a couple of centuries!) and there is one site in the walrus study where one pair of dates on associated caribou and walrus is several hundred years farther apart that the other pair.  Since walrus move around, some probably more than others,  it may not make sense until we figure out where the individuals were feeding.

A busy autumn

When I last posted I had just left for a trip to two conferences in Europe.  Since then, I’ve been in 4 countries, given two papers (at EAA 2015 in Glasgow and CHAGS 11 in Vienna), submitted an organized SAA session for next spring, come home, gone to Fairbanks for shotgun qualification, come back home, had two of the WALRUS project participants up here to cut samples from the bones that the interns have been finding in the collections, written part of two reports, drafted two abstracts for a meeting in November, and started on a proposal for an edited volume dealing with climate change & archaeology.  I haven’t managed to post at all.

Last week was a tough week for Barrow in many ways, with the deaths of several community members, including long-time mayor Nate Olemaun Jr..  On a brighter note, Barrow took three whales on Friday, and another three today.

In Fairbanks, looking for walrus

After a rather long, drawn-out saga, everything is in place and I can draw on funds so I can work on the WALRUS project.  The delays have been really frustrating for everyone involved.   Once I get the interns on board in Barrow, we’ll get back to going through the faunal material we have there for walrus samples.

We are trying to get samples from a wide range of sites.  Since the sampling is destructive, we don’t want to use artifacts if that can be avoided.  Ideally we want  unmodified walrus parts, bone or tooth, or if we can’t get enough of them, manufacturing discards.  As a fallback, we may wind up sampling things like shovels or bola weights, assuming we can get the museum’s permission, since they are common types of artifacts, and not diagnostic (or something that is likely to be displayed).  We currently can’t use tusk parts, since there have been no modern studies to compare their chemistry to that of bones and teeth, so interpretation of results would be problematic. (If any carvers would be able to contribute some scraps from tusks along with a sample of bone and/or a tooth from the same animal, it would be a really big help).  We are also looking for caribou or some terrestrial plant material from the same place in the site for radiocarbon dating, since marine mammals incorporate old carbon and the dates are hard to interpret.

More recent archaeological projects tend to have excavated faunal material in the same way as everything else, with decent stratigraphic control, and also tend to have brought it back from the field.  However, in the early days, that was not often  the case.  Even if material was brought back, it often wasn’t cataloged in any detail, so reports are almost no help in figuring out if there is any walrus to be had in archaeological collections.  A bit of walrus shows up in catalogs, but most of it is in the form of artifacts.  A lot of walrus artifacts (particularly bone, since ivory was clearly an item of trade) suggests that the inhabitants of a site were hunting walrus, so the potential for walrus parts to exist in the collection is there.

Many of the classic sites on the coast of  Alaska have strong indications that walrus were being caught by the people who lived there, but they were excavated decades ago, and finding suitable samples in the collections was not something that could just be done by getting someone to pull a particular bag or catalog number.  It pretty much requires looking through mixed lots of artifacts and bags of bones.  So I’m in Fairbanks doing just that.

We are mostly working in the museum, but it is closed on the weekend, so we got  permission to bring a collection of faunal material to the PI (Nicole Misarti)’s lab, and we went through it yesterday.  It took some doing, but we got though it, and should have plenty of samples.  It was an adventure.  We had 24 boxes, most of them full of bags like this:

Nicole holds a bag from which the bones on the tray burst forth when she took it out of the outer bag.
Nicole holds a bag from which the bones on the tray burst forth (like a scene from Alien) when she took it out of the outer bag.  Sadly, these were almost all ringed seal parts.  Other bags from that box are on the right.

Not all of the bags were correctly labeled, or at least the labels often didn’t specify species, just element, so we had to look.

We found a few other interesting things in the process, including this really large fish bone from Point Hope.

Really big fish bone.
Really big fish bone.
The other side of the really big fish bone.
The other side of the really big fish bone.

I’m pretty sure it’s some sort of cod (Gadid) but exactly what sort?  It’s really big.  If I have time, I’ll talk to the curator of fish, but the mission is walrus samples at the moment.

Help wanted!

Crew members wanted

Nuvuk Archaeology Project

Walakpa Archaeological Salvage Project

WALRUS – Walrus Adaptability and Long-term Responses; Using multi-proxy data to project Sustainability


We are seeking students (high school or college) to work in the archaeological laboratory on artifacts as part of several NSF-funded research projects. The lab crew will be working on processing artifacts excavated at Nuvuk, Walakpa and other North Slope sites.

This will involve cleaning (gently), sorting, marking, cataloging and preparing some items for transfer to a long-term repository. We will also be going through and sorting some frozen organic samples from an earlier project in Barrow that have been sent back from New York State.

We also will be attempting to find walrus bones in these collections for analysis at UAF. There is a possibility for student travel in connection with that project.

You do not need any prior experience; we can train you. Many archaeology crew members start as high school students. Once you learn how to do the work, scheduling can be very flexible. If you have skills in drawing, photography, or data entry, we can really use your help as well! Starting wages will depend on experience and qualifications.

To apply, send a resume and cover letter to Anne Jensen, as soon as possible.  You can use the contact form below for questions.

Ramping up in the lab

I have gotten far enough along in getting over the back surgery that I finally have enough energy to do things that are not strictly essential for work or staying fed.  So we are ramping things up in the lab.

We are looking for a few more people to work in the lab here in Barrow, joining the current crew on weekdays or weekends.  Due to the source of funding, these folks will need to be high school or college students.  We are also looking for volunteers.  I will post the announcements on here a static page and also as posts.

We aren’t sure yet if we will have funds available to do fieldwork this summer, but we are hopeful.  If we do get into the field this summer, people who have lab experience will have priority for fieldwork jobs.

If you are interested, please contact me ASAP.  Please pass this on to anyone you know who might be interested.



The smell of old seal oil in the afternoon…

… can be a bit overpowering.  I chose one of the bags of frozen samples from Utiqiaġvik to thaw out for the lab tour after the Saturday Schoolyard talk.

The talk went well, with a very large turn out.  Afterwards, a fair number of them came by the lab for a tour.  And then I opened the bag.  It was from Mound 8, and was described as containing fish bones and perhaps artifacts embedded in seal oil.

Provenience tag from the bag.
Provenience tag from the bag.

It was rather smelly to say the least.  The oil made up most of the matrix, with a consistency like cold greasy peanut butter.  Not only that, the most obvious contents were wood chips and hair, which weren’t too exciting.  Most folks didn’t feel like hanging around too long.  Since it was my birthday & there was a party at my house, I didn’t finish the bag.

Today I got back to work on it for an hour or so.  It still smelled, I guess, but I think the smell of old seal oil is sort of nice.  It’s the smell of archaeological sites, and they are places I like to be.  The couple of extra days had let the oil warm up and it was a little easier to work with.

Contents of the bag.
Contents of the bag.

I found a number of interesting things, including a fish vertebra, some fish scales, a number of hairs, some bone fragments, and of course, wood chips.  When I was labeling the bags, I realized it had been excavated by none other than Kevin Smith, now at the Haffenreffer, exactly 32 years and 3 months ago.

Fish vertebra
Fish vertebra
Bone fragments

Tomorrow I’ll do some more.

A bit of interior decoration

We’ve added a couple of new student hire for the summer, but still have room for one or two more, so if you are interested, get in touch ASAP!

With the larger crew, we have been working on getting some of the Pingusugruk collection sorted and in proper archival boxes.  We need to move the container it was in, so we’d have to move the boxes anyway, and this way we can not only record which bag is in which numbered box, but also sort the “Tamis” bags, which are the 25% random sample drawn at time of excavation from the rest, to make future analysis easier, and find the rest of the bags from the column sample that Rebecca Connor & Angelique Neffe started on, so I can finish that analysis.  Most of this work is being done by our adult volunteers.

The students worked on this a little, mostly to get it set up so the volunteers can work easily, and also to get more room on the lab benches, so that they can work on the Nuvuk materials with no chance of things getting mixed up.  In the process, we had a number of animal bones that were collected on the beach or tundra and donated to us.  Some of them have been labeled as to species and element, and are being used to help with the preliminary sort and cataloging of the materials from Nuvuk Locus 6 midden.

There were a few things which were sort of superfluous, like a caribou skull.  The students really wanted to use it as a decoration, so with a little glue to keep the teeth in, it was suspended outside the door (using peel-off hangers of course to avoid damaging the wall.

The caribou skull
The caribou skull

Apparently, they found something else they felt was not necessary to include in the comparative collection, either because we haven’t found any (we haven’t) or because they figure everyone already knows what it is.  The next day, this is what the door looked like.

A addition to the decor
A addition to the decor
The new addition is a walrus baculum, often known as an oosik.  I doubt some of the visiting scientists know what they are looking at :-).

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Visits to zoological collections

I am in Seattle for the Alaska Anthropological Association meetings.  Today was spent primarily in tours of the Burke Museum’s zoological collections (in the morning) and the marine mammal collections at NMML (in the afternoon).  The Burke has pretty impressive collections, especially when you add in the off-site material, and NMML has a good range as well.  After the tours, Jeff Bradley of the Burke took me to their off-site storage to look at whale mandibles.

I’ve been trying to track down whale mandibles ever since I was sent a picture of one from Cape Krusenstern and I saw one at Cape Espenberg that didn’t look like bowheads.  I didn’t think they were grey whales either, but I’m not as familiar with their skeletons.  There are bowhead skulls in front of every school in Barrow (& my daughter attended all three), the college, the library/heritage center, the city hall and the North Slope Borough building, as well as miscellaneous other sites around town, so I know bowhead jaws when I see them.

I found a couple that looked like possible matches, or at least members of the same family, so that is progress.  The Burke has pretty restrictive photo policies (they hold a lot of art, so the policies are based on that), which means I can’t put any photos up here without permission.  It would take days  & several person-hours of work at both ends, so I’m not going to try for a blog post.

Now off to bed so I can be bright-eyed & bushy-tailed (or at least halfway coherent) for our session tomorrow.  I don’t have to give any papers until afternoon, but still…  The other organizers have papers in the morning, so I’m guessing I’ll be moderating….  We’re only winging it a little 🙂

In Praise of Dolly Vardens

I was going to continue the story of the trip to Wainwright, but then there was a knock at the door.  Mike & Patsy Aamodt have a net out by Nuvuk, and often stop by to check on the proceedings (Mike was once an archaeologist, among many other things). They stopped by on the way home from checking their net, and were kind enough to share two Dolly Vardens from their catch.

Dolly Varden heading for the pan
Dolly Varden heading for the freezer

They were alive until a couple of hours ago, and one went straight to the oven and the other got vacuum sealed and went straight to the freezer.

Super tasty!  Thanks so much to Mike & Patsy!

Dolly Varden “trout” are actually char and can either be sea-run, spending part of their lives at sea, or landlocked, spending their entire lives in freshwater.  The name comes from a character in a Charles Dickens novel, who had a polka-dot dress, and after whom a type of 1870’s fashion was named.  The fish was probably named after the fashion.

I am going to save the skeleton for a comparative specimen.

Trip to Wainwright–Part 2

Once we finished with the original reason for the trip, we headed back to town for lunch.  The Olgoonik Hotel does have a very tasty grilled cheese sandwich, and they make their own soups.

Since there was time left, I decided it would be a good idea to go back to the general area where the possible road would go, since between the TLUI and the AHRS there were a number of nearby sites.  Given that many of them were not located by GPS (in some cases the only location data was something like “3 miles from Wainwright” it seemed like it would help my clients to know a bit more about the situation prior to actually trying to design a road.

The TLUI showed an area whose name translates as “a place to tent” very close to the find.  There was a fairly flat area between the river and a lagoon which looked likely (especially in the past, when sea level was a wee bit lower) so we went there.  There was some evidence of tenting, and a lot more of butchering, mostly of larger marine mammals, including beluga and maybe a porpoise (they are found around there, and the skull didn’t look right for a beluga, of which there were multiple examples).  But what there was also evidence of was archaeology.  And lots of it!  There were a veritable plethora of trenches, very overgrown, so this had all happened some time ago.

Old 1m x 1m unit
Two units separated by a baulk
Yet more excavations, at a slightly higher elevation.

Tim was fascinated, and wanted to clean a wall, so I headed off to get my trowel.  He’d started with a bone he found, and discovered that under the lichen the wall in question was very hard.  I started to clean it and immediately recognized oil-indurated sand.  It became clear that there were overlapping patches of oil induration at various levels, and that the area had been used to process marine mammals for some time.  It was a sunny day, and after a while the smell of marine mammal oil permeated the pit.  It’s the smell of archaeology in the north, and I love it.  Others may think differently.

This was very interesting, as one would expect that this much excavation would only happen if the archaeologists were finding things.  If one put several sterile trenches in, one would probably go elsewhere.  Yet, there is no site recorded in the AHRS at that location, and I’m not sure who did this.  There are a couple of hints in Waldo Bodfish’s autobiography with Bill Schneider, but there is still a mystery to solve there.

And then there’s Maudheim…


Plenty of fish

Excavation of the hearth & surroundings continued.  When we first found fish bones we were pretty excited.   We just keep finding more in and near the hearth and I must admit the thrill is rapidly fading 🙂 . We’re finding some other bone too, not all of which has been burnt past the point of recognition.

The egg was successfully extracted and packaged, and has made it back to the lab, I hope more or less intact.  We shall see when we start processing things.  If we can’t figure out what it was, Dennis said they’ll take a crack at IDing it through DNA.

Two neat finds

We started investigating the last GPR hit and came down on a jumble of wood.  The excavators were not optimistic, but I kept pushing to go a little further.  Eventually, this appeared:

Feature detected with GPR

The feature (I’m not calling it a burial until there is evidence of human remains) was jumbled because at some time after it was constructed, someone dug a hole in the middle of it.  And right beside where the hole had punched into the feature was this:

Antler arrowpoint

The hole just missed it.

The DWF (Ipiutak) levels had their own surprises.  We found a good bit of fish bone, some lithics (nothing diagnostic) and a lot of broken bone, but the really cool thing, which I found on the edge of the hearth, was a flattened but apparently complete egg!

The remains of the egg

Lab and logistics–Pt. 1

The past couple of weeks have been really hectic.  The local students have been working in the lab, and I’ve been dealing with logistics non-stop.

We’re at the point where we could go through the bags from the shovel test pits.  In the early days of archaeology, only artifacts were collected, and sometimes only the unbroken ones, at that.  The details of their provenience were often recorded in very broad term.  As the discipline progressed, new methods kept developing, and it became clear that many of the things that had been discarded could have yielded information, had they only been collected.  The pendulum swung toward keeping everything, including large volumes of samples, on the principle that someday methods would catch up, and then the information could be recovered.  This is the same reason that practice moved toward only excavating part of a site, or even of a feature.

Now, however, it is becoming clear that museums cannot expand indefinitely, and that not everything can be kept.  In fact, some places are deaccessioning items.  Many places are being much more selective in what they will accept.  There is a real storage space crunch in Barrow (particularly for climate controlled storage) so we need to be judicious about what is retained for the future.

At the same time, we are excavating with crews which include beginning excavators, in sometimes unpleasant weather.  The only good way to make sure that important data (or artifacts) don’t get left in the field is to have people collect things even if they are not sure they are artifacts.   And they do.

When the bags are gone through and the contents cleaned, obvious mistakes are discarded at that point.  That still leaves an enormous volume of material.  There simply isn’t place for it all, so some decisions have to be made in how to deal with it.  The most rational approach is to discard the items with the least information potential first.

The Point Barrow spit has been used by people and animals for the entire period of its existence.  Faunal remains have been dropped and scattered by humans and animals alike.  Artifacts have been dropped and lost and refuse has been tossed.  That’s true of most sites, but the  post-depositional processes acting at Nuvuk are a bit different.

At the majority of sites, the site is built up like making a layer cake.  The bottom layer goes on the plate first, then a layer of frosting, then another layer of cake, and so forth.  The oldest layer is on the bottom, and the newest on top.  If you put a piece of candy on the cake and push it down into the bottom layer, there are traces of that, so that it is possible to figure out that it was the last thing added.

At Nuvuk, on the other hand, the loose gravel matrix means that something can be dropped on the surface, stepped on twice and be 10 cm under the surface, covered with apparently undisturbed gravel, in 15 minutes.  Digging can bring older items to the surface, as can frost heaving and the action of tires.  In other words, there is no way to tell what was deposited before what.  One can get relative dates for artifacts based on their style or even patent dates for trade items, but that doesn’t tell you anything about when they were deposited at the site.  Faunal remains are even worse.  There is no way to date them (C14 dates at $900/bone aren’t likely to happen) and since polar bears hunt the same animals as the Nuvukmuit (people of Nuvuk) did, and drop bones on site, we can’t even be sure the bones were introduced by humans.  The only exceptions are areas where there was a sufficient amount of organic matter to support plant growth and soil development.  These include the graves and middens (and the sod houses before they eroded away).

This difference was taken into account when we developed the protocols for shovel test pits.  The excavators collected the artifacts and faunal material by natural levels.  In most cases, the entire STP was in the same loose gravel level.  This means that the materials from those STPs have much less information potential that the materials from the areas of the site with some soil development and stratigraphy.  Any research questions that could be addressed with this material can also be addressed with material with better stratigraphic control, at far less cost and with more confidence in the results.  That makes them an ideal place to start when trying to reduce the volume of the collections to be retained for the long-term.

We have been digging over 2000 STPs each season (and really hope the GPR will reduce that a lot).  Some of them had nothing in them, but most had at least a few animal bones and artifacts.  So we are working with the bags from STPs where there had been only an undifferentiated gravel level.  Any particularly interesting or unique artifacts are being saved (although they are few and far between, most having been found during excavation).  Recent trash (cigarette butts, juice boxes, etc), recent nails & metals straps, cloth gloves and the like are recorded and lab discarded.  Items with maker’s marks or other markings that might allow identification and/or dating are being retained for further analysis, and others are being sorted, counted and recorded prior to lab discard.  So far there seems to be a good collection of Pabst Blue Ribbon cans from the pull-tab era.  We are also retaining items (gears, lock sets, etc) which look as if they might be further identified with the right documentation for additional analysis.  The faunal material is being sorted.  Modified items are being retained for further analysis, identifiable elements are being recorded and lab discarded (with particularly good examples being saved for a teaching collection), and unidentifiable fragments are being counted and lab discarded.  This is good practice for the students, and since the STP material isn’t well-suited for future research (due to the issues mentioned above), overall this is a positive step.

My “upcoming trip to Fairbanks”–almost ready

As Tripit puts it, I have an “upcoming trip to Fairbanks” for which I very nearly forgot to make travel arrangements.  I remembered last week, and got the travel done, leaving only the paper, the poster, and the proposal I had to get done first.

The poster was finished on Friday, and sent off to Maribeth for final additions and printing.  She had a touch of flu, but has recovered in time to work out the final edits, and will be getting it printed.

I started serious work on the proposal earlier in the week, and got the final numbers on Friday to plug in.  It went off to the contracting officer this morning, and now we will see.  Costs keep going up here in the Bush, and it makes it tough all round.

I have the paper (or the PowerPoint for it) almost done.  I need to get a picture of Herman Ahsoak’s shed where he keeps his whaling gear (not in the house, behind it, just like folks have for centuries), and improve the map of the whaling captain’s work area at the Peat Locus at Nuvuk tomorrow, and then it’ll be ready.

I’m trying to get packed tonight, so I don’t have to rush after work tomorrow.  It looks like a good meeting, although for the second year in a row the Alaska Consortium of Zooarchaeologists (ACZ) workshop and the Alaska Heritage Resource Survey (AHRS) workshop conflict.  This is getting a bit old.  It should be possible to schedule them both during the meeting without conflicting, but that would apparently require some forethought and consideration on the part of those organizing the AHRS meeting.  The ACZ meeting was scheduled way in advance…

18th Arctic Conference–Part 5 (Day 2-PM)

At last!  After a fine lunch, we reassembled in Dalton for the afternoon session.  We moved from Alaska to the North Atlantic, and a variety of Norse sites.  Tom McGovern kicked it off with an overview of what had been accomplished during the most recent IPY.  Much of this is due to the work of various NABO members.  He talked about some really neat school outreach programs, including one issuing GPS and camera to students & teachers to record archaeology and in the case of Iceland, place names.  He also highlighted a very interesting initiative to develop

Konrad Smiarowski talked about zooarchaeology associated with the Vatnahverfi Project, part of the Norse Eastern Settlement, Greenland.  The project involved survey and excavation (following NABO common protocols, which make for great inter-site inter-comparability).  He was looking at how the Norse immigrants adapted to a new environment with new (to them) resources.  He had evidence for the adoption of seal hunting, which the Norse seem not to have done elsewhere, despite the presence of seals, as well as hunting of walrus for ivory and birding.  Bones of harp and hooded seals, both of which are migratory, show up even at more inland sites, so it looks like either people are coming to the outer coast to hunt or the seals are being traded inland.  It looks like they were net or drive hunting.  Things seem to have been going on well, but increasing amounts of ice seem to have changed things, driving people to intensify sealing at the same time as it was affecting the local seal populations.  Things ended badly, as we know.

Ramona Harrison gave an interesting paper on the farm Gásir and its hinterlands, including various types of landscape (hayfields, pastures, etc).  She is working on the zooarchaeology as part of a long-term human eco-dynamics in Eyjafjörður, Northeast Iceland.  Unfortunately, my notes on this appear not to have been saved, so I won’t go into more detail, so as not to mis-report anything Ramona said, but it was quite interesting, and reports should be on the NABO website soon, if they’re not there now.

The final paper was given by Seth Brewington on work in the Faroes, particularly at Undir Junkarinsflotti.  It was abandoned in the 1300s due to repeated sand blows, which were a problem at that time in a number of places on the eastern side of the North Atlantic.  The paper dealt with the zooarchaeology, which is quite unique as bone preservation generally seems to be bad in the Faroes, and the idea of keeping bone is still relatively new.  The inhabitants seem to have been eating lots of birds (mostly puffins), even in comparison to other Norse sites, where the bird consumption seems to drop after the earliest settlement period.