THE
2003 FALL CENUSUS OF WATERBIRDS IN THE
BLACKSTONE
NATIONAL CORRIDOR NOVEMBER 22-23
Amazingly
we had great weather on both days of the count and I got away with being
dressed
only in a sweater for most of the count. Ah! If only the CBCs were like this!
There
was no substantial ice on any ponds and temps climbed into the low 50s with
calm
winds and only partly cloudy skies. Participants in this year's count were:
FRAN
McMENEMY, JOAN ZUMPFE (Worcester) Just this one count takes ALL day.
BILL
RASKU, KATHY MILLS (Douglas, Millville, Blackstone, Uxbridge)
MARK
LYNCH, SHEILA CARROLL (Leicester, Cumberland, Pawtucket, Providence (in
part),
and East Providence (in part).
JOHN
LILLER, KIM KASTLER, HOWARD SHAINHEIT (North Smithfield, Burrillville,
Glocester)
DAN
BERARD, DEB BERARD (Lincoln, Smithfield, Woonsocket)
BARBARA
WALKER, RICK WALKER, MIKE WALKER, PAUL MELESKI, VAL
MILLER,
PRISCILLA MOOR (Northbridge, Mendon, Hopedale, Upton)
JIM
HOGAN, KATHIE HOGAN, SIMON HENNIN, LAURA LANE (Sutton, Millbury,
Grafton):
nota bene: this was a new team for this section as Phil Guerin was out of town
this
fall. They did a great job covering an awful lot of ground.
SOME
POINTS OF INTEREST:
1. It is
obvious that some species are widely distributed in migration throughout
the
Corridor.
This would include expected common species like Mallard and Canada
Goose,
but also Hooded Merganser, Common Merganser (to a degree) and
Black
Duck (though in much lower numbers than historically occurred in the area.
Counts
of thousands use to occur along the Seekonk). These species most likely
"pond
jump" south as northern ponds begin to freeze.
2. Some species are regular yearly migrants,
but occur in small numbers and
typically
only in certain locations: This would include species such as: WOOD
DUCK,
GREEN-WINGED TEAL, GADWALL (especially the Lonsdale Marshes),
AMERICAN
WIDGEON (Worcester and Providence), RING-NECKED DUCK,
RUDDY
DUCK (Turner Reservoir), BUFFLEHEAD (especially the Seekonk
River),
and COMMON GOLDENEYE.
3. Then there are species that are very
uncommon in fall in the Corridor, but appear
almost
yearly. This would include NORTHERN SHOVELER and NORTHERN
PINTAIL.
4. Because of the mild weather, a record
number of GREAT BLUE HERONS were
noted
this fall, with more in Massachusetts than Rhode Island. These represent
birds
that have not migrated south yet.
5. We recorded an unusual high number of COMMON
LOONS in the
Massachusetts
section of the Corridor. This bird has always been uncommon to
rare
"on the water" in the Corridor, and is instead most often seen in
spring as a
migrant
flying north. Typically, they prefer the large bodies of water of
Massachusetts
in migration, like Wachuset and Quabbin Reservoirs. This
number
of loons is inexplicable as of yet.
6. We also had a record number of OSPREYS,
again likely associated with the
open
water.
7. Some species movements in the Corridor are
less obvious. We recorded no
Canvasbacks
this year, but they do regularly occur in the southern end of the
Corridor,
sometimes in very large numbers. The same strategy seems to be true
for
both species of scaup and perhaps BUFFLEHEAD. Large numbers
(hundreds)
of the latter winter along the Seekonk and I have even seen
individuals
in mid-summer (sick?), but they are uncommon to very uncommon
throughout
most of the rest of the Corridor in migration. Immense flocks of scaup
(thousands)
winter just south of the Corridor and good counts can be found on
the
Turner Reservoir and along the Seekonk River. Yet, like the Bufflehead, they
are
only occasionally recorded in migration on other ponds of the Corridor.
8. GREAT CORMORANTS were in very small numbers
on this fall's count, but
DOUBLE-CRESTEDS
were still in good numbers for this late in the year. By
December,
GREAT CORMORANTS are regular in modest numbers at the
southern
end of the Corridor.
9. PIED-BILLED GREBES were recorded in smaller
numbers than I expected with
all the
open water.
10. We found no BONAPARTE'S GULLS this year along
the Seekonk. This fall
season
(July-October) along the Seekonk has also been very poor for terns,
Laughing
Gulls, (which previously have been found in the hundreds) and even
Snowy
Egrets (rarely recorded this year which is unusual) and Black-crowned
Night
Herons (only a few on our bi-weekly censuses). Part of the explanation for
this
may be the extensive dredging operations that are occurring at the mouth of
the
Seekonk, which may have affected anadramous fish movements.
11. Unusual species seen on this year's count
included SNOW GOOSE, BLACK
SCOTER,
SURF SCOTER, and what was described as a "giant Mallard, almost
the
size of a Canada Goose" in Elm Park, Worcester. I am eagerly awaiting the
opportunity
to check that mutant out.
12. As has been true since we started to monitor
the Corridor, the greatest variety
and
number of waterfowl are seen at the two extremely urban opposite ends of
the
Corridor: Worcester and the small area of Providence/East Providence that is
IN the
Corridor. The Turner Reservoir in East Providence has long been known
as a
great area for migrant waterfowl and numbers of ducks are returning to the
broad
and tidal Seekonk. But check out Fran and Joan's list for Worcester. And
this is
not an unusual count. In the years we monitored waterfowl on Worcester
Ponds,
we were often amazed at the variety of species that could be found in the
city.
13. In contrast to the big cities, the towns of
Hopedale, Mendon and Upton
consistently
have few waterbirds, even Mallards. Woonsocket has few waterbirds
too,
but has relatively few ponds and is also very urban. Why the towns of
Mendon,
Hopedale and Upton should be so waterbird poor is significant and
needs
investigation. I also found few waterbirds in the rapidly developing town of
Leicester.
This is a town with a good number of ponds, but far fewer waterbirds
than
would be expected. It is very sobering to realize that when we monitored
Leicester
on Saturday, one of the best spots in the town for numbers and variety
of
waterbirds was not a pond at all, but the Rt. 56 overlook of Worcester Airport,
where
we had good numbers of gulls and geese and a flock of Common and
Hooded
Mergansers FLY by in the late afternoon.
14. One reason for the paucity of waterbirds in
these suburban towns has to be
some
aspect of the physical nature and geographic situation of the ponds. Most
have
very little emergent vegetation, some are very built up along the edges and
are
smack in the middle of what I like to refer to as "unrelenting,
featureless
suburbs".
One of the most frequently heard comments about the Corridor is how
much
developing is going on and at such a rapid pace. The rate and nature of
the
development of the Corridor is every bit as critical an environmental issue as
water
quality. In contrast, there are a
number of urban ponds in both Worcester
and
Providence that are adjacent to or in the middle of historically preserved
green
spaces and offer at least some vegetative screening from people. Even
tiny
Salisbury Pond, which hosts numbers of migrants, has a nice back area of
cattails
that offers the birds some cover. Though it should be noted that this area
itself
is in danger of being destroyed as plans to dredge the pond are proceeding.
In
Cumberland, there is a tiny very shallow puddle of a pond in a neighborhood
and on
a major road. This pond is about the size of the parking area of Broad
Meadow
Brook, yet this year we found many Mallards, Black Ducks, Green-
winged
Teal, Pintail and Hooded Mergansers there. One reason that such a
variety
is found on this meager pond is that the pond is completely screened from
the
roads surrounding it with trees and shrubs and had minimal human presence.
One
long term project that I had planned with Gail, was to do more in-depth
profiles
of ponds that were both attractive to waterfowl as well as the others that
seemed
to attract no birds and look at a number of factors including invertebrate
populations,
plant populations, water quality et. Hopefully, we can interest
someone
else at the sanctuary in this project.
15. It has been suggested by some, that the
increase of boats and the general
increased
presence of people on some of the waterways of the Corridor has
decreased
those waterways' use by migrant water birds. This has been brought
up in
regards specifically to ponds like Rice City Pond, in Uxbridge. This area
used to
team with a wide variety of ducks in fall and has hosted such regional
rarities
as Eurasian Widgeon (a pair) and Fulvous Duck (three together,
Worcester
County's only record) in recent decades. But recently, waterfowl
numbers
have been paltry and some have suggested this has to do with an
increase
in human presence. On this fall's count we had a kayaker flushing
ducks
off of Turner Reservoir. This is a first, and I had never seen kayakers in fall
on this
body of water. This is part of a larger thorny problem, which does need
looking
into. As we promote increased human use of the Corridor waterways, are
we
having an adverse affect on wildlife in the area? This is NOT a popular
question
to ask, and it is interesting how quickly it gets dismissed. Some
activities
that appear to have minimal impact on the "environment" by themselves
may in
fact have serious repercussions when repeated often enough. This
includes
hikers, canoeists et. Put enough kayakers on Turner Reservoir (and
other
areas) often enough and the ducks will be gone. If we want the Blackstone
National
Corridor to continue to be an important place for migration and breeding
of
birds and other animals, some kind of regional management plan for the
benefit
of the other living residents of the Corridor needs to be discussed.
IMPORTANT:
NOTE THE BELOW INFORMATION
THE
NEXT SPRING CORRIDOR-WIDE WATERFOWL COUNT WILL BE ON THE
WEEKEND
OF MARCH 27-28. I am now going to hold the count over an entire
weekend
to give folks more flexibility. You can do your count all on one day, or do
part
one day
and the rest the next. The only thing I ask is that you complete an entire town
per
day, in other words do not do part of a town one day and part of that same town
the
next.
This will allow folks to do a more complete job scouring their towns. This may also
make it
easier to get people to help out on the count. The count will be held rain or
shine
BUT if there is a major snow or ice storm predicted on either day, the count
will be
held
the next weekend APRIL 3-4. We all do one weekend or the other. Some people
cannot
do one weekend and others the other.
ATTACHED
are three forms: (1) the town-by-town MA totals, (2) the town-by-town RI
totals,
and (3) the state and Corridor totals. Included on the last x-cel spreadsheet
are
Corridor
wide fall totals from 2002 and 2001. Please note that the 2001 fall survey was
done
solely by Sheila and I over almost two weeks, though we completed several towns
every
day. This meant that we had a great variety of migrants because the time span
was so
great.
Thanks
to all who helped in this effort. See you in the spring, on a CBC or in the
field.
Mark