Welcome Swallow nests - timing and locations.

I've been going through the four main field guides.  On my
rough count only one says much about swallow nests although
all seem to think the species is well represented.

ALL nests around here that I have found in an attempt to
help Prue Simmonds, who sent a request to this list, are on
artificial structures.  In fact the more artificial the
better, like inside toilets, under porches....  (Past
records include inside yachts).  How can field guides refer
to large flocks if breeding opportunities are this limited ? 

Further breeding activity this year seems late. Any ideas
why ?

Michael Norris
A rarity is anything you have found time to stop and
appreciate
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