I've kept records of my bird sightings on my computer for quite a few years.
I also kept records of most of the birds reported on the Cincinnati
Rare Bird Alert tape from its inception in 1989, until it was discontinued.
The last years of the tape overlapped the increased
use of the internet. The sightings reported on the sightings log here, and on the ohio-birds
list, are also in the database. When David Styer and I worked on the checklist for the
Cincinnati Nature Center, we added many of his records, along with records from other local
birders. Finally, I've included miscellaneous
records from the Dayton and other nearby tapes, as well as records from the
Ohio Cardinal, the Kentucky Warbler, the Indiana Audubon Quarterly, and
whatever else caught my attention. These are the records which I used to
prepare the Cincinnati bird list found on the Audubon Society of Ohio web site.
The database contains 269,652 records, and is NOT up to date, since I quit adding records to the database in 2008.
For the time period covered by the database, it is pretty complete for the counties which surround Hamilton County, and much less
so for the other counties which make up the Birdathon Area (roughly, 50 miles from where
Ohio, Kentucky and Indiana meet).
There are most certainly errors in the data. Some of them are the result of
my transcription errors. If (when) you spot such an error, please drop me a
note so that I can correct it. Other errors, however, are the result of
mistaken identifications by the reporters. When Jay Stenger compiled the
Cincinnati tape, he screened out the obvious wrong reports. For example, you
will not find a record of the flock of puffins that frequented a local feeder.
But there is no formal review process for records submitted to and included in
the taped reports, so less obvious errors have undoubtedly slipped through.
The bottom line is, if a record seems unbelievable, then don't believe it.
I would like to thank Steve Pelikan, Hank Armstrong and Neill Cade
for sending me many years of data which they
have amassed, which are included in the database.
This database resided on the Cincinnatibirds.com web site for many years, and has now been transferred over to the
Audubon Society of Ohio site. It will become increaingly outdated as time passes, but perhaps it will be useful to someone.
You can extract lists of sightings for by species, by location, or both. The
report shows columns for the date (sorted by month, day, and then year), the
number seen (a + indicates that numbers were not recorded), the location, and
the names of the birders.
-- Ned Keller