[obol] Nesting Cooper's Hawk
- From: Jack Williamson <jack.williamson.jr@xxxxxxxxx>
- To: OBOL Oregon Birders Online <obol@xxxxxxxxxxxxx>
- Date: Sun, 1 Jun 2014 21:40:12 -0700
I have been watching a Cooper's Hawk nest located in a high-traffic for
three weeks . During the first two weeks of my observation, the parents
were quite vocal and easily observed during periods of prey hand-off from
the male to the female. I watched the female sitting on the nest for hours
at a time, and from time-to-time, she appeared to be rotating the position
of the eggs before settling back down. I observed the male spend a short
time on the nest just twice during while the female was away.
Nine days later - today - I spent four hours in the area and observed no
activity in or around the nest. More troubling for me (at first) was the
appearance of a fresh (wall) of small fir boughs obviously recently clipped
and stacked on the outside edge of the nest blocking what was before a
convenient view into the top of the nest.
I am wondering if the newly added fir boughs were added by the parents to
provide an enhanced level of camouflage to the nest - - if not - - - then
at this point in the breeding season what other species would be moving in
and adding to the nest for their own purposes.
--
Jack Williamson
West Linn, Oregon
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