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Tree Swallow (TRES) pair
Tree Swallow (TRES) pair

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TRES Nest box
TRES Nest box

Installed along a cross fence on the prairies with an adult looking out of the nest box

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TRES nest box
TRES nest box

Male TRES checking out a house wren nest box. It did not fit in this box but moved to another site with a TRES nest box.

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Tree Swallow (TRES) pair
Tree Swallow (TRES) pair

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Tree Swallow Nest Box Gallery

Tree Swallow & Violet-green Swallow Nest Box Guidelines

For information regarding current research on tree swallow nest boxes that is being conducted by Warne in the Wild go to the Tree Swallow Nest Box Research page.