Here are a couple more.  A marsh hawk is a northern harrier and a sparrow hawk refers to a merlin.  According to Audubon, a pigeon hawk refers to a merlin.
---- Bill Whan <[log in to unmask]> wrote:
> Dave & all--
>      Yes, the UM data are very good. This pair has not successfully
> nested (so don't have young to feed), but has been present yearly since
> 2006. Cuckoos form a surprising proportion of their diet (I recall
> numbers of remains in the 60s recovered in one summer). Other major menu
> items are rails and woodpeckers, also weak fliers. I visited Janet
> Hinshaw, manager at the UM Museum, last week, and found her reassembling
> wings of cuckoos from the debris dropped by those falcons. If I recall
> correctly, our Akron birds have been knocking off a surprising number of
> cuckoos, too. Who can blame these birds for taking easy tasty prey?
>      Is having a couple of showy top-of-the-food-chain raptors of
> dubious parentage worth significant impacts on populations of local
> birds? They aren't killing many of the other introduced birds--pigeons
> and starlings--we hoped they'd eat. What if we gave names like "Chloe"
> and "Charisma" to the local cuckoos? What is the theoretical limit of
> the spread of this population of falcons? Ohio has 35 nesting pairs now.
> What will prevent them from occupying every church steeple and bank roof
> ledge in the state? To me it seems they are joining the growing list of
> problematic show-birds with no legitimate claim to Ohio citizenship,
> like trumpeter swans or 'giant' Canada geese, which while they may not
> so often kill native birds (I've seen one of the former trying to kill
> one of the latter, though), at least chase them off traditional nesting
> localities. Anyone's who's been checking Pond 3 at Killdeer in recent
> years will know what the swans do; interestingly, they are not there
> this year, and I hope managers are to be credited.
> Bill Whan
> Columbus
>
> Dave Slager wrote:
>  > The diet of the peregrines nesting at the University of Michigan is
>  > well-documented.  Rails and cuckoos are especially well-represented
>  > including a Yellow Rail.
>  >
>  > http://www.ummz.lsa.umich.edu/birds/peregrine/um-peregrines.html
>  >
>  > I have found 2 Yellow-billed Cuckoo carcasses under the Horseshoe at
>  > OSU, beneath a common perch for the Columbus Peregrines.
>  >
>  > Dave
>  >
>  > Dave Slager
>  > Graduate Student
>  > Terrestrial Wildlife Ecology Lab
>  > School of Environment and Natural Resources
>  > The Ohio State University
>  > 210 Kottman Hall, 2021 Coffey Road
>  > Columbus, OH  43210-1085
>  > [log in to unmask]
>  >
>  >
>  >
>  > On Wed, Jul 14, 2010 at 10:34 AM, William Hull <[log in to unmask]>
> wrote:
>  >> In the Cincinnati area rarely do I hear non-birders discuss the
>  >> downtown Peregrine Falcons.  Typically I run into people who are
>  >> interested in the increasing number of Bald Eagles and Wild Turkeys.
>  >> It could be observer bias on my part since I do not spend a lot of time
>  >> downtown and do spend a lot of time in areas where Bald Eagles and
>  >> Wild Turkeys are found.
>  >>
>  >> I have heard from people who have monitored downtown nest sites that
>  >> the Peregrines' prey items include American Woodcock and Yellow-billed
>  >> Cuckoos.   An introduced raptor preying on local breeders can not be a
>  >> good thing.  It could be that the location of the Cincinnati birds
>  >> near the Ohio River and the floodplain parks of the Little Miami River
>  >> gives them easy access to these birds.  I wonder what the Columbus
>  >> birds prey upon?
>  >> Cheers,
>  >> Bill Hull
>  >> Cincinnati, OH
>  >>
>  >>
>  >> On Wed, Jul 14, 2010 at 4:41 AM, Margaret Bowman
> <[log in to unmask]> wrote:
>  >>> I suppose one of the better results of the peregrine program is the
> interest
>  >>> it generates in non-birders.  With things the way they are right now,
>  >>> anything that excites the interest of "laymen" can't be all bad,
> and the
>  >>> Columbus peregrines have really caught the attention of folks who
> know that
>  >>> I'm a birder.  Every time a conversation comes up, the peregrines
> come into
>  >>> it before it's over.  Even people who don't know a robin from a
> cardinal
>  >>> have caught on to the drama of the Columbus falcons.  What's wrong with
>  >>> that?
>  >>>
>  >>> Margaret Bowman
>  >>> Licking Co., OH
>  >>> ----- Original Message -----
>  >>> From: "Tom Bain" <[log in to unmask]>
>  >>> To: <[log in to unmask]>
>  >>> Sent: Tuesday, July 13, 2010 11:17 PM
>  >>> Subject: Re: [Ohio-birds] Raptor nest sites?
>  >>>
>  >>>
>  >>>> Peregrine fans,
>  >>>>
>  >>>> Here's an intriguing statement from an observant Moravian missionary,
>  >>>> David
>  >>>> Zeisberger, speaking of the Muskingum River valley, in his "History of
>  >>>> North
>  >>>> American Indians" describing eastern Ohio during the American
> Revolution
>  >>>> and
>  >>>> after, page 67:
>  >>>>
>  >>>> "Of other birds of prey, there are to be found here the hawk, the
>  >>>> stone-falcon, that remains near the rocks, the pigeon-hawk, that
> pursues
>  >>>> not
>  >>>> only the pigeon, but all other birds it can conquer, though it is
> a small
>  >>>> bird and not as large as the pigeon."
>  >>>>
>  >>>> Tom Bain
>  >>>> The Clayey Till Plains
>  >>>> Delaware, Ohio
>  >>>>
>  >>>> -----Original Message-----
>  >>>> From: Ohio birds [mailto:[log in to unmask]] On Behalf
> Of Bill
>  >>>> Whan
>  >>>> Sent: Sunday, July 04, 2010 12:51 PM
>  >>>> To: [log in to unmask]
>  >>>> Subject: [Ohio-birds] Raptor nest sites?
>  >>>>
>  >>>>       It seems like a good time of year to discuss nesting. I have
>  >>>> questions
>  >>>> about the nest sites chosen by raptors our wildlife agencies have
>  >>>> introduced/re-introduced to Ohio, and would be very grateful for
>  >>>> first-hand reports of nests in truly wild situations.
>  >>>>       First, peregrine falcons. As many bird students know, prior
> to the
>  >>>> introductions there was no evidence this species had ever nested in
>  >>>> Ohio. Nevertheless, wildlife managers decided to join a
>  >>>> hastily-conceived stampede to introduce hacked birds to many locations
>  >>>> in Ohio and other states, in an effort to support a recovery of the
>  >>>> regional subspecies (even though they mostly introduced other
>  >>>> subspecies), to provide educational opportunities, and also, I
> suppose,
>  >>>> to promote their stewardship of non-game species. I don't want to
> argue
>  >>>> any more about that, but is anyone aware of a truly wild nesting site
>  >>>> for a peregrine falcon in the state?  Not a building or a bridge,
> but a
>  >>>> real cliff or tree, etc.??
>  >>>>       I have the same question about ospreys. While I regard the
> osprey
>  >>>> project undertaken by wildlife managers to be a far more justifiable
>  >>>> operation--ospreys have a solid record as Ohio nesters in the past,
>  >>>> making the project a legitimate re-introduction effort--I have a
> similar
>  >>>> question. Is anyone aware of a successful osprey nest in Ohio that is
>  >>>> placed in a wild nesting site---not a platform, a utility tower, etc.,
>  >>>> but a real tree, etc.??
>  >>>>       I would be glad to hear that falcons and ospreys have
> returned to
>  >>>> natural nest sites, but then I would not be terribly surprised to hear
>  >>>> they have not. If the latter is the case, is there anyone else out
> there
>  >>>> who feels uncomfortable about such a situation?  Are we approaching a
>  >>>> time when kestrels all nest in kestrel boxes, and barn owls in barns??
>  >>>> Bill Whan
>  >>>> Columbus
>
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