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So far, the utilization of new boxes placed since 2001 has almost doubled with each year. --2005 My observations/comments: Even before my first season working with Kestrels I'd only heard Kestrels twice between 4/1 and 5/3 of 2002. Once while repairing an existing box, and once while checking an existing one. Most of the times I see them is while driving. On 5/18 I heard Kestrels 3 times that day when I watched active boxes from the road.
In late March and early April I no longer see the Kestrels in as many places as I did in the late summer, fall, and winter. They seem to stay only in certain areas that they may be nesting in. Based on what I've heard and seen, many Kestrels nest in straw nests as far as new and unmaintained boxes are concerned. Starlings seem to be the first birds to use the boxes if they are mounted early enough in the season. They remove the wood chips/shavings and replace them with their own grass and straw nests. Kestrels then usurp the nest boxes from the Starlings. In the case of my nest box #1, Starlings removed the wood chips and only had time to add a few strands of straw before the Kestrels took it over. I then filled the nearly bare bottom of the box with 3" of straw. In mid-March of 2002 I found large grashopper peices in a 10 yr old Kestrel box I was helping to repair. There were also the partial remains of a Kestrel.
In May 2002 I had the opportunity to observe a Kestrel banding project in VA. I was able to see and hear
a lot of adults and also photograph many baby Kestrels. 40 of them got leg bands and there were an additional 50
more babies/eggs scheduled for future banding.
Here are 5/11/2003 photos of a nest box on that trail.
The following 3 images below are of the same photo by Anna G. in Cato, NY. This usage of a natural cavity was on the property 25 ft from Anna's house.
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Begin tour of the nest boxes ||
Nest box construction ||
My observations/comments
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| Started: 5/1/2002. Last updated: 4/20/2005. Web site is not-for-profit & run by: John R.C. | |||||||||||||||||||||||||||||||