Predicted dates for Delaware Ospreys - Tuttle
E-mail from Dick Tuttle:
Hello Everyone,
Once again and for the third time, the Ospreys at Alum Creek No. One appear to be incubating. Between 1005 and 1031 today, Sunday 22 April 2007, I observed the female adjust her position three times, all with egg rolling behavior, followed by rocking back and forth with weak tail wiggles. Lets hope the competing females at this site have settled their argument for good.
Since all four known nests in Delaware County show incubation, I offer the following predicted dates based on 37 days of incubation and 55 days of nestling time before fledging. I also added when the young would be five weeks old when planning leg banding events are planned.
Delaware Lake Nest: April 18, incubation; May 25, hatch; June 29, 5-weeks; July 19, fledge.
Hoover Nest: April 10, incubation; May 17, hatch; June 21, 5-weeks; July 11, fledge.
Alum Creek #1: April 22, incubation; May 29, hatch; July 3, five-weeks; July 23 fledge.
Alum Creek #4: April 15, incubation; May 22, hatch; June 26, five-weeks; July 16 fledge.
Of course, the above dates are predictions and anything can happen, but many people are watching these nests so accurate updates will not be a problem.
Raptor on, Dick Tuttle
Hello Everyone,
Once again and for the third time, the Ospreys at Alum Creek No. One appear to be incubating. Between 1005 and 1031 today, Sunday 22 April 2007, I observed the female adjust her position three times, all with egg rolling behavior, followed by rocking back and forth with weak tail wiggles. Lets hope the competing females at this site have settled their argument for good.
Since all four known nests in Delaware County show incubation, I offer the following predicted dates based on 37 days of incubation and 55 days of nestling time before fledging. I also added when the young would be five weeks old when planning leg banding events are planned.
Delaware Lake Nest: April 18, incubation; May 25, hatch; June 29, 5-weeks; July 19, fledge.
Hoover Nest: April 10, incubation; May 17, hatch; June 21, 5-weeks; July 11, fledge.
Alum Creek #1: April 22, incubation; May 29, hatch; July 3, five-weeks; July 23 fledge.
Alum Creek #4: April 15, incubation; May 22, hatch; June 26, five-weeks; July 16 fledge.
Of course, the above dates are predictions and anything can happen, but many people are watching these nests so accurate updates will not be a problem.
Raptor on, Dick Tuttle
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