I can report, although informally, that I did not hear or see many bluebirds while I visited various nest boxes around Castle Rock for box maintenance & repair this season. In fact, despite visiting 14 different sites between the first week of March and yesterday (always on calm sunny days), I heard/saw bluebirds only twice. That is definitely very low compared to previous years. But I can also report more specifically that we found only 3 complete nests and 5 incomplete nests in our 190 nest boxes last week during the first week of monitoring, compared to 5 complete nests and almost a dozen incomplete nests during the first week of monitoring in 2020. We too have a very detailed monitoring program with extensive data keeping since 2007, so we will have a good opportunity for data comparison at the end of the season.
-Barbara Spagnuolo, Castle Rock (Douglas County)
From: 'Hugh Kingery' via Bluebird-Babble <bluebird-babble@googlegroups.com>
Sent: Wednesday, April 7, 2021 5:50 PM
To: cobirds@googlegroups.com; douglbirds@googlegroups.com; bluebird-babble@googlegroups.com
Subject: {Bluebird-Babble} Bluebird dearth
We have not seen many bluebirds this spring, so I compared this year with the three prior years' data. This year we have seen only one or two of either species only once in a while. The last 3 years we saw them almost daily starting in mid-March.
This drop seems striking, at least along our road and on the trail we walk regularly. Have others noticed this pattern?
Hugh & Urling Kingery
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