[birdky] RPT: Nestling Brown-headed Cowbird in Carolina Wren nest
- From: <brainard@xxxxxxxxxxxxxx>
- To: BIRDKY <birdky@xxxxxxxxxxxxx>
- Date: Thu, 24 Jul 2014 09:55:48 -0400 (GMT-04:00)
A couple of days ago I heard an odd begging call coming from the Carolina Wren
nest in a box on my back porch. The nestling Carolina Wrens have a unique
begging call and this sounded more drawn out and trilled like that of a
Brown-headed Cowbird. I peeked in this morning and sure enough there is a big
nestling cowbird in there with at least two wrens.
I am amazed at this because of the site of the nest box, which has an open end
of about 4" x 4" [surely enough to accommodate a female cowbird], but it is
tucked in the upper corner of the porch and I haven't seen a cowbird around
here for some time. Also, this is actually later than I thought cowbirds would
lay eggs; typically the females will lay into early July, and this clutch was
probably initiated about two weeks ago, so right at the end point in the
cowbird nesting season. For some species (Wood Thrushes, Indigo Buntings,
etc.), it is the late season nesting that finally allows them to raise
"cowbird-free" broods of young.
bpb, Louisville
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Other related posts:
- » [birdky] RPT: Nestling Brown-headed Cowbird in Carolina Wren nest - brainard
