I have been observing a pair of Swallows in an open-to-the-air covered
car park at the office building where I work. They have a nest in a
sheltered corner near a fluorescent Exit sign which is constantly on.
They began building a nest in September/October and had fledged young
by the end of December. This year I have observed that the adult birds
(but not the young) have continued to hang around the nest. I first I
thought they were nesting again, but there is no sign of this. A few
days ago the nest disappeared (either it fell down and was cleared up,
or the maintenance people knocked it down), and they still hang around
the area, mostly commonly they sit on top of the Exit sign. I notice
them when I park my bike around 7am each day, and when I leave around
3.30pm each afternoon.
Is it common behaviour for swallows to come back and perch around
their former nest-site after breeding? Are they guarding a site until
the end of the season, expecting to return next year? or is it just a
habitual perch for them?
--
John Leonard
Canberra
Australia
www.jleonard.net
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