  
Tree swallows prefer houses attached to dead trees. Space Tree Swallow Houses about seven feet apart
for these white-bellied birds with iridescent blue-green backs
and wings. The ideal setting for these insect-eaters is on the
edge of a field near a lake, pond, or river. Violet-green
swallows nest in forested mountains of the west; Our Violet-green
Swallow Houses placed on
large trees in a semi-open woodland will attract them. If you
have the right habitat, barn swallows are easy to
attract. It's their nesting behavior, not their plumage or song,
that catches your attention. Barn swallows tend to nest where you'd
rather not have them: on a ledge right over your front door. To
avoid a mess by your door, offer them a Barn Swallow Nesting Perch nearby
where you'd rather have them.
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