[CT Birds] Osprey question

Tom de Boor tomdb2 at aol.com
Tue Jun 30 13:10:31 EDT 2009

> So here's a question out for all those who think everything's genetically
> driven and purely adaptive.  I've noticed "my" Ospreys, who basically nest
> in my backyard, are in the habit of soaring over dry land (i.e. no
> opportunities for food) and issuing a series of calls where the object seems
> to be to make each call a little higher than the next.  They aren't close
> enough to hear each others' calls--it's clearly a solo performance, but
> what's up?  Are they trying to practice fitness (the higher an Osprey can
> go, the more fit he/she is?) against some future date?  Or are they just
> singing out in what we would call joy?

Tom de Boor
Branford, CT

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