Touching Bird Eggs
is it true that once a human has touched a bird nest
that the mother will no longer approach that nest?
Not necessarilly. Most song birds have poor sense of smell. As long as the
contact is minimal the adults will return, so that if a nest falls intact it
can be put back and the adults will continue to attend it. What will scare
the adults away is excessive contact or human presence or other disturbance.
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Update: June 2012