RE: [cayugabirds-l] (Long comment) Exempt part of Cayuga Lake from hunting diving ducks

2013-01-06 Thread Jody W Enck
Hello all,

 There are several of us in the local birding community who are working on 
issues like this -- interactions between birders and hunters.  Indeed, several 
of us have been involved at various scales (local, state, national) for many 
years.  These are complicated issues, and good reasons (for birders, and for 
waterfowl conservation) actually exist to maintain waterfowl hunting on Cayuga 
Lake.  I think it makes wonderful sense to have these conversations locally, 
and the Cayuga Bird Club is a great platform.  The discussions likely will 
require quite a bit of discussion in small to medium-sized groups (rather than 
on a listserve), although some kind of mechanism probably will need to be 
identified to allow input from folks who are not Bird Club members or who do 
not live close enough to meet regularly but want to participate in the 
discussion.  Like I said, something like this may seem like a worthy cause on 
the surface, but greater benefit for people and bird conservation might come 
out of some kind of effort at birders and hunters working together rather than 
as antagonizers.

 Thanks for listening.
Jody

Jody W. Enck, PhD
Human Dimensions of Natural Resources
Cornell Lab of Ornithology

From: Sandy Podulka
Sent: ‎January‎ ‎5‎, ‎2013 ‎8‎:‎51‎ ‎AM
To: CAYUGABIRDS-L
Subject: Re:[cayugabirds-l] (Long comment) Exempt part of Cayuga Lake from 
hunting diving ducks

This would be a great project for the CBC and John has made thoughtful, 
thorough points.  It will be a tough sell to DEC, though, as in my experience, 
many people at DEC (but hopefully not all) view wildlife only as stuff to 
hunt.

--Sandy Podulka

At 09:29 AM 1/5/2013, Linda Orkin wrote:
Hello All,

Yes, I think this could be a project of the bird club with this input and 
support from people like John and Bill and their  extensive knowledge and 
experience with authorities.  Let us pursue this worthy goal.  What would be 
a good next step? Should those of us interested get together?

John's points are so well presented and thought out it seems to be the perfect 
starting place.

Linda Orkin

On Sat, Jan 5, 2013 at 9:02 AM, Meena Haribal 
m...@cornell.edumailto:m...@cornell.edu wrote:

Hi all,



I think this would be great conservation project for CBC to take up, with 
inputs from Bill and John and anyone else to be part of it.



Cheers

Meena


Meena Haribal
Ithaca NY 14850
http://haribal.org/
http://meenaharibal.blogspot.com/


From: 
bounce-72558715-3493...@list.cornell.edumailto:bounce-72558715-3493...@list.cornell.edu
 [ 
bounce-72558715-3493...@list.cornell.edumailto:bounce-72558715-3493...@list.cornell.edu]
 on behalf of Bill Evans [ 
wrev...@clarityconnect.commailto:wrev...@clarityconnect.com]
Sent: Saturday, January 05, 2013 8:52 AM
To: John Confer; CAYUGABIRDS-L
Subject: Re: [cayugabirds-l] (Long comment) Exempt part of Cayuga Lake from 
hunting diving ducks

This would be a nice accomplishment that is long overdue. I’ve thought that the 
“few individuals...greatly reducing the pleasure of many” angle should be 
enough to produce such an exemption, but your approach of population analysis 
and presenting a scientific case for the exemption might help facilitate the 
change for DEC.  Certainly the issue of hunting in such close proximity to a 
population center seems like it could be a driver – besides the safety issue, 
the sound of gunshots can be quite unnerving for some in our society.

From the birding and environmental education perspective, it would be wonderful 
to enjoy viewing large rafts of Aythya ducks and their cohorts on a more 
consistent basis.

Nearly 20 years ago Common Council voted to ban hunting in Allan Treman Marine 
Park – apparently the City of Ithaca had allowed hunting there after it was 
purchased by the state in 1976. Hunting currently occurs in the water offshore, 
and I’m not clear on jurisdiction involved.

Bill E

From: John Confermailto:con...@ithaca.edu
Sent: Thursday, January 03, 2013 2:55 PM
To: Cayuga Bird Listmailto:Cayugabirds-L@cornell.edu ; Confer, 
Karenmailto:confergoldw...@aol.com ; j...@cornell.edumailto:j...@cornell.edu
Subject: [cayugabirds-l] (Long comment) Exempt part of Cayuga Lake from hunting 
diving ducks

Hi Folks,

CBC are always fun for many reasons. It tickles the grey cells to think 
about population trends and regulatory factors. I shared a fun discussion about 
the impact of hunting on waterfowl on the south end and the rest of Cayuga Lake 
and we discussed if there were objective data on population abundance to 
justify preventing such hunting. This got me thinking.
  The Fish and Wildlife spends an immense amount of effort to census waterfowl 
every year: extensive aerial surveys that criss-cross the prairie potholes and 
elsewhere and Hudson Bay coast, really extensive banding efforts, and hundreds 
of hours of ground surveys, etc. All of this provides an estimate of pop 
abundance for each species

Re: Re:[cayugabirds-l] (Long comment) Exempt part of Cayuga Lake from hunting diving ducks

2013-01-06 Thread nutter.dave
I agree with John Confer and others. I think his arguments should be more clearly and succinctly stated in order to be clear to others and effective to those who make decisions. I'm not volunteering or attempting to do so here, just adding some observations.The number and variety of waterfowl throughout Cayuga Lake in the winter are directly and obviously related to when the ponds at the adjacent Montezuma National Wildlife Refuge are frozen. Large numbers of birds rely on the lake as they do on the refuge.Duck shooting still occurs along the shore of Treman Marine Park despite bans by the City and/or the park. The loophole is that firing initially happens from a shallow-draft boat, while chairs,supplies,and carcasses are piled a few feet away on the shore. Gunners step into the ankle-deep water or wade up to their knees to shoot repeatedly at wounded birds. It's surprising how many shots it takes to kill a sitting duck.Yesterday morning a large raft of Redheads was in the southeast corner of the lake. Two guys from near Treman in the southwest corner of the lake, where we had heard gunfire, drove over in their boat, flushed the raft, and returned to the southwest corner. It looked like a deliberate disturbance of the birds in hopes that they would settle near the ambush. Thousands of Redheads flew north instead, but maybe some did settle in the southwest and get shot. I have also seen this practice of flushing birds on the water within the southwest part of the lake when birds are settled outside the range of their guns.I would prefer not to hear gunshots, as I did throughout my New Year's Day walk all over the streets of West Hill in the City of Ithaca. Rather than see birds being harassed, maimed, and killed by guys with guns and big motor boats, I would prefer to watch the birds feeding, courting, preening, and resting. Truly the bird life on Cayuga Lake is a spectacle worth publicizing and promoting.--Dave Nutter
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Re: [cayugabirds-l] (Long comment) Exempt part of Cayuga Lake from hunting diving ducks

2013-01-06 Thread Kenneth Victor Rosenberg
Hi all,

This discussion threatens to escalate quickly and I hesitate to weigh in 
but here are a few comments for everyone to consider:

1. One of John Confer's main points is that making the direct connection 
between hunting pressure on Cayuga Lake and overall waterfowl populations is 
extremely difficult or impossible. This is true, so we need to be very careful 
not to then turn around and claim that local hunting is detrimental to duck 
populations. The truth is that waterfowl populations are managed and monitored 
at continental scales and factors such as rainfall on the breeding grounds and 
invasions of zebra mussels have a far greater effect on overall numbers and 
distributions than local hunting pressure. Most duck species (including 
Redhead) have long-term stable or increasing populations, primarily due to 
successful hunting-based waterfowl and wetland management in North America over 
the past 30 years. I have not looked at our local (or statewide) waterfowl 
survey data (coming from the counts we do in late January after hunting has 
stopped), but I believe that many duck species, and especially Redhead, have 
continued to increase as wintering birds on Cayuga Lake. The massive flocks of 
diving ducks have become and continue to be a spectacle to enjoy on many parts 
of the lake in mid- and late winter – i.e. the birds are not driven from vital 
feeding and resting areas long-term by hunting. In short, I would be very 
surprised if a biological argument could be made against legal and regulated 
hunting on any part of Cayuga Lake.

2. So that leaves the societal issues, which John and Dave and others have 
alluded to at the end of their posts: I would prefer not to hear gunshots I 
would prefer to watch the birds feeding, courting, preening, and resting. 
These of course are valid concerns, but I think we need to very careful to 
separate these personal-choice and societal issues from the biological. It may 
indeed be time to have a conversation about the justification for allowing 
hunting along the populated and popular shoreline within the Town of Ithaca -- 
but this is primarily a conversation about human conflict of interest and not 
biology. Like all human-conflict issues, it promises to be complex, 
contentious, and even potentially nasty.

3. I urge everyone to carefully consider Jody Enck's remarks, in light of our 
big-picture goals -- i.e. keeping bird and wildlife populations healthy and 
stemming the cancer of rampant development and habitat loss. if Birders and 
Hunters cannot reconcile our relatively minor differences to present a unified 
front against the much-larger forces threatening our shared resource, the 
future for birds and their habitats will be much dimmer.

KEN


Ken Rosenberg
Conservation Science Program
Cornell Lab of Ornithology
607-254-2412
607-342-4594 (cell)
k...@cornell.edumailto:k...@cornell.edu

On Jan 6, 2013, at 11:24 AM, nutter.d...@me.commailto:nutter.d...@me.com
 nutter.d...@me.commailto:nutter.d...@me.com wrote:

I agree with John Confer and others. I think his arguments should be more 
clearly and succinctly stated in order to be clear to others and effective to 
those who make decisions. I'm not volunteering or attempting to do so here, 
just adding some observations.

The number and variety of waterfowl throughout Cayuga Lake in the winter are 
directly and obviously related to when the ponds at the adjacent Montezuma 
National Wildlife Refuge are frozen. Large numbers of birds rely on the lake as 
they do on the refuge.

Duck shooting still occurs along the shore of Treman Marine Park despite bans 
by the City and/or the park. The loophole is that firing initially happens from 
a shallow-draft boat, while chairs, supplies, and carcasses are piled a few 
feet away on the shore. Gunners step into the ankle-deep water or wade up to 
their knees to shoot repeatedly at wounded birds. It's surprising how many 
shots it takes to kill a sitting duck.

Yesterday morning a large raft of Redheads was in the southeast corner of the 
lake. Two guys from near Treman in the southwest corner of the lake, where we 
had heard gunfire, drove over in their boat, flushed the raft, and returned to 
the southwest corner. It looked like a deliberate disturbance of the birds in 
hopes that they would settle near the ambush. Thousands of Redheads flew north 
instead, but maybe some did settle in the southwest and get shot. I have also 
seen this practice of flushing birds on the water within the southwest part of 
the lake when birds are settled outside the range of their guns.

I would prefer not to hear gunshots, as I did throughout my New Year's Day walk 
all over the streets of West Hill in the City of Ithaca. Rather than see birds 
being harassed, maimed, and killed by guys with guns and big motor boats, I 
would prefer to watch the birds feeding, courting, preening, and resting. Truly 
the bird life on Cayuga Lake is a spectacle worth publicizing and 

Re: [cayugabirds-l] (Long comment) Exempt part of Cayuga Lake from hunting diving ducks

2013-01-05 Thread Bill Evans
This would be a nice accomplishment that is long overdue. I’ve thought that the 
“few individuals...greatly reducing the pleasure of many” angle should be 
enough to produce such an exemption, but your approach of population analysis 
and presenting a scientific case for the exemption might help facilitate the 
change for DEC.  Certainly the issue of hunting in such close proximity to a 
population center seems like it could be a driver – besides the safety issue, 
the sound of gunshots can be quite unnerving for some in our society.  

From the birding and environmental education perspective, it would be 
wonderful to enjoy viewing large rafts of Aythya ducks and their cohorts on a 
more consistent basis.

Nearly 20 years ago Common Council voted to ban hunting in Allan Treman Marine 
Park – apparently the City of Ithaca had allowed hunting there after it was 
purchased by the state in 1976. Hunting currently occurs in the water offshore, 
and I’m not clear on jurisdiction involved.

Bill E

From: John Confer 
Sent: Thursday, January 03, 2013 2:55 PM
To: Cayuga Bird List ; Confer, Karen ; j...@cornell.edu 
Subject: [cayugabirds-l] (Long comment) Exempt part of Cayuga Lake from hunting 
diving ducks

Hi Folks,

CBC are always fun for many reasons. It tickles the grey cells to think 
about population trends and regulatory factors. I shared a fun discussion about 
the impact of hunting on waterfowl on the south end and the rest of Cayuga Lake 
and we discussed if there were objective data on population abundance to 
justify preventing such hunting. This got me thinking.
  The Fish and Wildlife spends an immense amount of effort to census waterfowl 
every year: extensive aerial surveys that criss-cross the prairie potholes and 
elsewhere and Hudson Bay coast, really extensive banding efforts, and hundreds 
of hours of ground surveys, etc. All of this provides an estimate of pop 
abundance for each species. This is used to set bag limits. This immense effort 
is predicated on the belief that hunters are one of the significant factors 
that regulate waterfowl abundance, and that to sustain the population at nearly 
level numbers over the long term, one must adjust the bag limit in some 
proportion to the abundance at the start of fall migration. In the same line of 
reasoning, the spring snow goose hunting season and the split canada goose 
hunting season are all based on the belief that hunting in general regulates 
waterfowl abundance. The newly proposed expansion of waterfowl hunting on snow 
geese for Montezuma is also based on hunting will continue to regulate 
abundance. Either, hunting does regulate waterfowl abundance, or the FWS is 
fooling us and themselves.
  It is impossible to acquire the specific, statistically-based evidence 
that hunting regulates the specific population of waterfowl using Cayuga Lake 
for several reasons. There is no reason to believe that the impact of hunting 
of waterfowl on Cayuga Lake is exempt from this generality. In fact, it would 
be incumbent for the merit of such an argument to provide evidence why Cayuga 
Lake is an exception to the general concept of waterfowl management. 
Difficulties in making data-based arguments about waterfowl on Cayuga Lake 
include many factors.
1) There is no estimate of the take, which obviously means you can't quantify 
the impact. The absence of the fundamental data limits the ability to say if 
there is or isn't an effect.  
2)There is no way to estimate the impact of driving the waterfowl out of their 
favored foraging site. A reasonable hypothesis is that winter food supply is 
important. Waterfowl speak with their wings. This provides strong support for 
the hypothesis that the shallows of Cayuga Lake provide a favorable foraging 
site. There are no other areas in the inland northeast that have as many diving 
ducks in mid-winter as Seneca and Cayuga Lakes. The abundance of diving 
waterfowl on these lakes during times outside of the hunting season suggest 
that this food source may be one of the best in the entire winter range. In 
which case, limiting access to a food source for part of the winter may be very 
deleterious, and could have negative effects on far more than the number killed 
by shot.
3) When I first came here, there was a waterfowl bander on Seneca Lake. I never 
met him and don't recall his name. I was told, with what seemed like high 
credibility, that banding indicated that waterfowl moved back and forth between 
Seneca Lake, and by inference Cayuga Lake as well, and the coast repeatedly 
during the winter.  Thus, populations on Seneca Lake, and by inference Cayuga 
Lake, are a sub-sample of the eastern population. The suggestion that an 
increase in waterfowl on Cayuga Lake during the winter shows that hunting on 
Cayuga Lake has no impact on the Cayuga Lake population fails to consider that 
the Cayuga Lake population is a portion of and exchanges with the east coast 
wintering population. In order 

Re: [cayugabirds-l] (Long comment) Exempt part of Cayuga Lake from hunting diving ducks

2013-01-05 Thread Linda Orkin
Hello All,

Yes, I think this could be a project of the bird club with this input and
support from people like John and Bill and their  extensive knowledge and
experience with authorities.  Let us pursue this worthy goal.  What would
be a good next step? Should those of us interested get together?

John's points are so well presented and thought out it seems to be the
perfect starting place.

Linda Orkin

On Sat, Jan 5, 2013 at 9:02 AM, Meena Haribal m...@cornell.edu wrote:

  Hi all,



 I think this would be great conservation project for CBC to take up, with
 inputs from Bill and John and anyone else to be part of it.



 Cheers

 Meena


 Meena Haribal
 Ithaca NY 14850
 http://haribal.org/
 http://meenaharibal.blogspot.com/

  --
 *From:* bounce-72558715-3493...@list.cornell.edu [
 bounce-72558715-3493...@list.cornell.edu] on behalf of Bill Evans [
 wrev...@clarityconnect.com]
 *Sent:* Saturday, January 05, 2013 8:52 AM
 *To:* John Confer; CAYUGABIRDS-L
 *Subject:* Re: [cayugabirds-l] (Long comment) Exempt part of Cayuga Lake
 from hunting diving ducks

 This would be a nice accomplishment that is long overdue. I’ve
 thought that the “few individuals...greatly reducing the pleasure of many”
 angle should be enough to produce such an exemption, but your approach of
 population analysis and presenting a scientific case for the exemption
 might help facilitate the change for DEC.  Certainly the issue of hunting
 in such close proximity to a population center seems like it could be a
 driver – besides the safety issue, the sound of gunshots can be quite
 unnerving for some in our society.

 From the birding and environmental education perspective, it would be
 wonderful to enjoy viewing large rafts of Aythya ducks and their cohorts on
 a more consistent basis.

 Nearly 20 years ago Common Council voted to ban hunting in Allan Treman
 Marine Park – apparently the City of Ithaca had allowed hunting there after
 it was purchased by the state in 1976. Hunting currently occurs in the
 water offshore, and I’m not clear on jurisdiction involved.

 Bill E

  *From:* John Confer con...@ithaca.edu
 *Sent:* Thursday, January 03, 2013 2:55 PM
 *To:* Cayuga Bird List Cayugabirds-L@cornell.edu ; Confer, 
 Karenconfergoldw...@aol.com;
 j...@cornell.edu
 *Subject:* [cayugabirds-l] (Long comment) Exempt part of Cayuga Lake from
 hunting diving ducks

  Hi Folks,

 CBC are always fun for many reasons. It tickles the grey cells to
 think about population trends and regulatory factors. I shared a fun
 discussion about the impact of hunting on waterfowl on the south end and
 the rest of Cayuga Lake and we discussed if there were objective data on
 population abundance to justify preventing such hunting. This got me
 thinking.
   The Fish and Wildlife spends an immense amount of effort to census
 waterfowl every year: extensive aerial surveys that criss-cross the prairie
 potholes and elsewhere and Hudson Bay coast, really extensive banding
 efforts, and hundreds of hours of ground surveys, etc. All of this provides
 an estimate of pop abundance for each species. This is used to set bag
 limits. This immense effort is predicated on the belief that hunters are
 one of the significant factors that regulate waterfowl abundance, and that
 to sustain the population at nearly level numbers over the long term, one
 must adjust the bag limit in some proportion to the abundance at the start
 of fall migration. In the same line of reasoning, the spring snow goose
 hunting season and the split canada goose hunting season are all based on
 the belief that hunting in general regulates waterfowl abundance. The newly
 proposed expansion of waterfowl hunting on snow geese for Montezuma is also
 based on hunting will continue to regulate abundance. Either, hunting does
 regulate waterfowl abundance, or the FWS is fooling us and themselves.
   It is impossible to acquire the specific, statistically-based
 evidence that hunting regulates the specific population of waterfowl using
 Cayuga Lake for several reasons. There is no reason to believe that the
 impact of hunting of waterfowl on Cayuga Lake is exempt from this
 generality. In fact, it would be incumbent for the merit of such an
 argument to provide evidence why Cayuga Lake is an exception to the general
 concept of waterfowl management.
 Difficulties in making data-based arguments about waterfowl on Cayuga
 Lake include many factors.
 1) There is no estimate of the take, which obviously means you can't
 quantify the impact. The absence of the fundamental data limits the ability
 to say if there is or isn't an effect.
 2)There is no way to estimate the impact of driving the waterfowl out of
 their favored foraging site. A reasonable hypothesis is that winter food
 supply is important. Waterfowl speak with their wings. This provides strong
 support for the hypothesis that the shallows of Cayuga Lake provide a
 favorable foraging site

Re:[cayugabirds-l] (Long comment) Exempt part of Cayuga Lake from hunting diving ducks

2013-01-05 Thread Sandy Podulka
This would be a great project for the CBC and 
John has made thoughtful, thorough points.  It 
will be a tough sell to DEC, though, as in my 
experience, many people at DEC (but hopefully not 
all) view wildlife only as stuff to hunt.

--Sandy Podulka

At 09:29 AM 1/5/2013, Linda Orkin wrote:
Hello All,

Yes, I think this could be a project of the bird 
club with this input and support from people 
like John and Bill and their  extensive 
knowledge and experience with 
authorities.  Let us pursue this worthy 
goal.  What would be a good next step? Should 
those of us interested get together?

John's points are so well presented and thought 
out it seems to be the perfect starting place.

Linda Orkin

On Sat, Jan 5, 2013 at 9:02 AM, Meena Haribal 
mailto:m...@cornell.edum...@cornell.edu wrote:

Hi all,



I think this would be great conservation project 
for CBC to take up, with inputs from Bill and 
John and anyone else to be part of it.



Cheers

Meena


Meena Haribal
Ithaca NY 14850
http://haribal.org/http://haribal.org/
http://meenaharibal.blogspot.com/


--
From: 
mailto:bounce-72558715-3493...@list.cornell.edubounce-72558715-3493...@list.cornell.edu
 
[mailto:bounce-72558715-3493...@list.cornell.edubounce-72558715-3493...@list.cornell.edu]
 
on behalf of Bill Evans 
[mailto:wrev...@clarityconnect.comwrev...@clarityconnect.com]
Sent: Saturday, January 05, 2013 8:52 AM
To: John Confer; CAYUGABIRDS-L
Subject: Re: [cayugabirds-l] (Long comment) 
Exempt part of Cayuga Lake from hunting diving ducks

This would be a nice accomplishment that is long 
overdue. I’ve thought that the “few 
individuals...greatly reducing the pleasure of 
many” angle should be enough to produce such an 
exemption, but your approach of population 
analysis and presenting a scientific case for 
the exemption might help facilitate the change 
for DEC.  Certainly the issue of hunting in such 
close proximity to a population center seems 
like it could be a driver – besides the safety 
issue, the sound of gunshots can be quite unnerving for some in our society.

 From the birding and environmental education 
 perspective, it would be wonderful to enjoy 
 viewing large rafts of Aythya ducks and their 
 cohorts on a more consistent basis.

Nearly 20 years ago Common Council voted to ban 
hunting in Allan Treman Marine Park – apparently 
the City of Ithaca had allowed hunting there 
after it was purchased by the state in 1976. 
Hunting currently occurs in the water offshore, 
and I’m not clear on jurisdiction involved.

Bill E

From: mailto:con...@ithaca.eduJohn Confer
Sent: Thursday, January 03, 2013 2:55 PM
To: mailto:Cayugabirds-L@cornell.eduCayuga 
Bird List ; 
mailto:confergoldw...@aol.comConfer, Karen ; 
mailto:j...@cornell.eduj...@cornell.edu
Subject: [cayugabirds-l] (Long comment) Exempt 
part of Cayuga Lake from hunting diving ducks

Hi Folks,

 CBC are always fun for many reasons. It 
 tickles the grey cells to think about 
 population trends and regulatory factors. I 
 shared a fun discussion about the impact of 
 hunting on waterfowl on the south end and the 
 rest of Cayuga Lake and we discussed if there 
 were objective data on population abundance to 
 justify preventing such hunting. This got me thinking.
   The Fish and Wildlife spends an immense 
 amount of effort to census waterfowl every 
 year: extensive aerial surveys that criss-cross 
 the prairie potholes and elsewhere and Hudson 
 Bay coast, really extensive banding efforts, 
 and hundreds of hours of ground surveys, etc. 
 All of this provides an estimate of pop 
 abundance for each species. This is used to set 
 bag limits. This immense effort is predicated 
 on the belief that hunters are one of the 
 significant factors that regulate waterfowl 
 abundance, and that to sustain the population 
 at nearly level numbers over the long term, one 
 must adjust the bag limit in some proportion to 
 the abundance at the start of fall migration. 
 In the same line of reasoning, the spring snow 
 goose hunting season and the split canada goose 
 hunting season are all based on the belief that 
 hunting in general regulates waterfowl 
 abundance. The newly proposed expansion of 
 waterfowl hunting on snow geese for Montezuma 
 is also based on hunting will continue to 
 regulate abundance. Either, hunting does 
 regulate waterfowl abundance, or the FWS is fooling us and themselves.
   It is impossible to acquire the specific, 
 statistically-based evidence that hunting 
 regulates the specific population of waterfowl 
 using Cayuga Lake for several reasons. There is 
 no reason to believe that the impact of hunting 
 of waterfowl on Cayuga Lake is exempt from this 
 generality. In fact, it would be incumbent for 
 the merit of such an argument to provide 
 evidence why Cayuga Lake is an exception to the 
 general concept of waterfowl management.
 Difficulties in making data-based arguments 
 about waterfowl on Cayuga Lake include many factors.
1