I'm monitoring 12 bluebird nest boxes along the Blue Mash Nature Trail this
season.  Tree Swallows nested in the majority of the boxes and their young
have now fledged.  Should I remove the empty nest?  Also, one of the boxes
has an E. Bluebird sitting on 5 eggs, however, the eggs are not blue but
off-white in color.  Any idea what they may be?

Tom Marko
Olney, MD
Montgomery Bird Club (MOS
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