OHIO-BIRDS Archives

October 2014

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Subject:
From:
Darlene Sillick <[log in to unmask]>
Reply To:
Darlene Sillick <[log in to unmask]>
Date:
Sat, 25 Oct 2014 22:57:06 -0400
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We hope to see you Monday eve at OWU for the Oct 27th DCBC meeting.  Our
speaker, Stephen Bischoff age 16, was a second time speaker at the Ohio
Avian Conference at Denison University last Saturday.  His talk Monday will
be an expanded version from Oct 18.



Best

Darlene Sillick

DCBC co-program chair



Please email me privately if you would like a copy of the full Oct 2014
newsletter.







---


Vol. 29  No. 7                                             Delaware County
Bird Club Newsletter                                               October
2014






DCBC PROGRAMS



     The Delaware County Bird Club meetings and program presentations take
place on the fourth Monday of each month, September through April, except in
November and December when they are held on alternate days to accommodate
the Thanksgiving and Christmas Holidays. Please join us in the City of
Delaware at the Ohio Wesleyan University, Schimmel-Conrades Science Center,
Room 163. Conversation and refreshments begin at 7:00 PM; the meetings and
programs start at 7:30 PM. Parking is available next to the Selby Stadium on
the east side of Henry Street and in the lot south of the Science Center
next to Branch Rickey Arena. Enter the south west doors by the greenhouse.



DCBC PROGRAMS FOR AUTUMN



October 27th: "Two Year Comparison of the Growth and Development of Tree
Swallow and Eastern Bluebird Using Photography and Weight Measurements",
Stephen Bischoff, Ohio Young Birder.

     During 2014 Stephen monitored two nest box trails observing the growth
and feeding habits of Tree Swallows and Eastern Bluebirds. Hatchling weights
were recorded daily and photographed against a 1/8" x 1/8" grid. Hatchlings
were also photographed against growth charts created last year to determine
whether charts could be used to age birds. Game cameras were mounted on some
nest boxes to record the frequency of visits. The exponential growth
patterns recorded last year were identical this year and pattern appeared
the same for both first nestings and second nestings. In addition, the
growth charts developed last year appear to be an accurate way to age
hatchlings. Videos captured by game cameras indicate that the parents
increase the frequency of nest visits during the rapid growth period.

     Stephen is a sixteen year old junior at Dublin Scioto High School. He
is actively involved in the Ohio Young Birders Club and also volunteers at
the Ohio Wildlife Center. Earlier this year he monitored two nest box
trails: a ten box trail at OCLC in Dublin and another 14 box trail at
Sawmill Wetlands.




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