the second of our two LIS Super Seawatch counts, on April 9th, is ON, for this weekend.
1pm on April 8th:
Waiting for two more missing bird counts from 3/25, and meanwhile prepping for the LIS seawatches on Sunday April 9th.
Please RE-confirm (to robben99@gmail.com) if you can do the count for your LOCATION on April 9th.
11pm on April 2nd:
We are waiting for about 4 outstanding bird counts, and then we will do our download, analysis and summary of the 70+ counts on March 25th, hopefully by the end of next week. All the reports which we have received are reflected in our "deck of slides"...
LIS Seawatch 2017 - Google Slides
where you can conveniently "flip" from one report to the next by using the computer arrow keys.
Note that we have 52 observers and they provided bird reports on about 70! different locations around the perimeter of LIS Long Island Sound. This is much great coverage than we had hoped for! THANK YOU ALL!!
Noon on April 1st:
Sorry for the delay. Had a work-related deadline to complete. Back on this now. More by evening. Note that we have received even more eBird reports in the last few days, and are approaching 100% on that.
6pm on March 31st:
WHY ARE SO MANY GULLS ASSEMBLING IN WATERS OFF STRATFORD CT?
Okay, our plankton samples from yesterday's boat trip off Stratford CT were brought in (still alive) to the UConn lab ( Hans G. Dam Laboratory ) which specializes in these matters (zooplankton) and we have identified several species, including a lot of barnacle cyprids (a young stage of barnacle) and several types of copepods. The following image from today shows some of our samples being photographed through a special inverted microscope, displaying two barnacle cyprids and one copepod (about 1mm long) in the center of the computer screen...
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| Click on image to enlarge; press ESC key to return. |
More info on this will be published here within 24hours, with photos. The question is, and remains: what are these thousands of gulls eating? Are we missing something here? Is there some missing link in the food chain which we have not caught in our nets or our photos of the feeding gulls? I dont think this question is resolved yet. More soon....
Meanwhile scroll down to see the post below, or jump there by clicking on... Super SeaWatch: Are the gulls eating plankton?
9pm on March 30th:
Several of Frank Mantlik's eBird reports from March 25 indicate hundreds of Ring-billed Gulls off three Stratford CT beaches, so we decided to take a boat out there to try to find even larger numbers of gulls massing and surface feeding. We want to know what these masses of gulls are feeding on, and what may be driving this phenomenon. Several of us went out on Nick Bonomo's 20foot boat from noon until 2pm on March 30th and were happy to find a flock of about 2,500 gulls on the water, almost a mile offshore, beyond where they could be seen from a shore-based seawatch ( eBird Checklist – US-Long Island Sound - 41.1364x-73.1578 - Mar 30, 2017, 12:25 PM, Connecticut – Thu Mar 30, 2017 – 12 species ). They were actively surface feeding. We towed 2 plankton nets through the center of this large flock and collected a LOT of plankton. On March 31st it is being taken to UConn for analysis. More in 24hours.
Here is some of the active zooplankton we collected...
We have also received quite a few more eBird reports from March 25th and they will be incorporated here within a day or two.
9am on March 29th:
As of now, data has been received from about 47 of our 50 observers. Hoping to get the remaining reports within several days, after which we will do the full eBird data download, merge-in the non-eBird data, and then perform the analysis and mapping.
A quick analysis shows that the numbers of Ring-billed Gulls is much lower than some of us expected to find, with no location showing up to 1,000 birds. More on this tomorrow. And Bonaparte's Gulls were almost non-existent anywhere in our LIS seawatch count.
Meanwhile it seems that the "best birds" of the count were the following three (I apologize for cropping the photographs)...
Eared Grebe photographed by Russ Smiley at Stonington Town Dock...
eBird Checklist – Stonington Town Dock, Connecticut – Sat Mar 25, 2017
eBird Checklist – Tuxis Island, Connecticut – Sat Mar 25, 2017
Razorbill seen by Larry Flynn in Norwalk waters.
7pm on March 28th:
Where are the largest numbers of ring-billed gulls (and bonaparte's gulls) concentrating now, in late March 2017?? At the moment, we are not sure.... but here is some history...
Six years ago, on March 22, 2011 we had about 14,000 gulls around Penfield Reef, just west of Bridgeport...
eBird Checklist – Penfield Reef, Connecticut – Tue Mar 22, 2011
and 3 days later we had about 28,000 gulls in a feeding frenzy in the waters off Stratford CT...
eBird Checklist – Lordship Seawall, Stratford, Connecticut – Fri Mar 25, 2011
and an independent estimate of about 20,000 gulls three days later...
eBird Checklist – Stewart B. McKinney NWR--Stratford Great Meadows, Connecticut – Mon Mar 28, 2011
and about 16,000 gulls exactly two years later, in the same general area...
eBird Checklist – Long Beach, Connecticut – Thu Mar 28, 2013
And this post in Keith Mueller's blog catalogs a lot of the previous discussions of this topic:
New England Coastal Birds: Long Island Sound Barnacle Larvae Gull Feeding Blitz
8pm on March 27th:
We now have most (but not all) of the eBird reports from our counts. We have downloaded them in one large table from eBird. We are experimenting with various ways to display and analyze that data. Later this week when we are sure all eBird reports have been submitted to eBird, we will download again, and then publish the results here. Here is a very small part of the MyEBirdData which was downloaded (which you can click on to enlarge, and then press ESC key to return):
1am on March 27th:
Click on the following link to see images of all the 3/25 eBird reports we have received until now, March 27 at 1am:
LIS Seawatch 2017 - Google Slides << will be updated on March 30th.
Click on the link to view this presentation "deck", and you can flip through the reports, using arrow keys, etc. Click on View and Present to display in the much better full-screen mode. One sample image is below, and you can click on that image to enlarge it, and then press the ESC key to return...
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| This is a cropped version of a Howie Sternberg photo from 3/25/2017, taken at East Wharf, Madison CT. Click on it to enlarge, and press ESC key to return. |
11:00pm on Sunday March 26th:
We have received about 2/3 of the inputs from yesterday's seawatch counts. Have started a worksheet, manually transferring data into it. After all eBird inputs are in, probably in a few days, we will ask eBird to give us an extract of all our data (in the eBird account "LIS seawatch"), which should also give us another and more complete data table, which will be published at this site. We have received a LOT of good information, from 50 good people, and its going to take a few days to turn-this-around and pull it together at this site, but that will be done. Meanwhile if any of you have found any "good birds" of wide interest yesterday, please publish them on your CT (Birding News | @ABA CT) or NY (Birding News | @ABA NY) listserv forums.
8pm on Saturday March 25th:
Okay, we had a great day and have already received a lot of reports. More here soon as we dig through them over the next hour or more. Please send in your reports at your convenience this week; no need to feel rushed.
We had about 50 observers! today (only 2 had to drop out) counting at more than 35 locations. THANK YOU ALL!!!
As of 8pm we have received reports from more than two dozen observers, 2/3 eBird and 1/3 email. Taking a quick look, it seems the "best birds" of the day would include Eared Grebe in Stonington area and Razorbill in Norwalk area, unless I overlooked some others. More tonight, tomorrow and this week. THANKS to all, including three surprise observers who jumped-in and contributed even though they were not on our list!
Thanks from your admin team of Steve, Patrick, Frank and Tom.
And here is a photo which Frank Mantlik took today 3/25 (which i cropped) of Brant at Seaside Park in Bridgeport... you can click on the photo to enlarge it, and then press ESC key to return...







