On 12 Mar, 20-24 double-crested cormorants were in their customary roost
tree, visible on the east side of I-71 just north of the Greenlawn
Avenue on-ramp. A rough notion of the timing of their appearances and
disappearances here over the past several years suggests--or at the very
least does not rule out--that they are composed of locally nesting birds
and their progeny.
        Breeding cormorants have accompanied locally-nesting great egrets and
great blue herons at a quarry here for several years. It would be
interesting if someone, maybe someone who commutes daily into the city,
could keep track of how long this roost lasts this spring, and when it
reassembles later, and lets the rest of us know.
Bill Whan
Columbus

______________________________________________________________________

Ohio-birds mailing list, a service of the Ohio Ornithological Society.
Our thanks to Miami University for hosting this mailing list.
Additional discussions can be found in our forums, at www.ohiobirds.org/forum/.

You can join or leave the list, or change your options, at:
http://listserv.muohio.edu/scripts/wa.exe?LIST=OHIO-BIRDS
Send questions or comments about the list to: [log in to unmask]